Uncovering the story of an unknown army of Black soldiers who played an instrumental role in the expansion of the United States.

Exploring how modern military innovations stem from ancient Chinese inventions like gunpowder and automated crossbows.

The legendary Japanese samurai Musashi meets his archrival Kojiro in a climactic duel in 1612. Host: Terry Schappert.

Air Force fighter-pilots risk their lives flying F-86 Sabres during the Korean War.

Kills 99% of Bacteria, Viruses, and Germs with Steam! The 5-in-1 Lightweight, Fast, Powerful, And Completely Chemical Free Steam Cleaner! Lift and remove dirt and stains all around the home!

Paid programming.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

Even if YOU do everything right to protect yourself, company and institutional data breaches are out of your control. Nearly 1 out of 4 US consumers have been a victim of identity theft. Find out how LifeLock can help protect your identity.

Paid programming.

For years, Total Gym has been a leader in fitness, empowering millions to achieve their health goals. One piece of equipment does it all. Over 100 unique exercises. No assembly required. Folds for storing. Go to TotalGymDirect.com for special offers!

Uncovering the story of an unknown army of Black soldiers who played an instrumental role in the expansion of the United States.

Exploring how modern military innovations stem from ancient Chinese inventions like gunpowder and automated crossbows.

The legendary Japanese samurai Musashi meets his archrival Kojiro in a climactic duel in 1612. Host: Terry Schappert.

Air Force fighter-pilots risk their lives flying F-86 Sabres during the Korean War.

Armored gunboats prowl rivers of Vietnam and Southeast Asia.

Bombers vs. fighters during World War II and the Vietnam War.

Uncovering the story of an unknown army of Black soldiers who played an instrumental role in the expansion of the United States.

Exploring how modern military innovations stem from ancient Chinese inventions like gunpowder and automated crossbows.

The legendary Japanese samurai Musashi meets his archrival Kojiro in a climactic duel in 1612. Host: Terry Schappert.

Air Force fighter-pilots risk their lives flying F-86 Sabres during the Korean War.

Led by King Henry V, outnumbered English knights and archers slaughter French knights at Agincourt in 1415.

The aircraft carrier USS Enterprise becomes the most decorated ship of World War II while fighting against Japanese forces in the Pacific.

The Enterprise faces kamikaze attacks as the U.S. Navy closes in on Okinawa to tighten the Allies' grip on Japan and secure victory in the Pacific during World War II.

The mercenary pilots of the American Volunteer Group that fought Japan, became known as "Flying Tigers.".

Armored vehicles change the way wars are fought.

The weapons and wars of ancient Egypt.

The Enterprise faces kamikaze attacks as the U.S. Navy closes in on Okinawa to tighten the Allies' grip on Japan and secure victory in the Pacific during World War II.

The mercenary pilots of the American Volunteer Group that fought Japan, became known as "Flying Tigers.".

Armored vehicles change the way wars are fought.

The weapons and wars of ancient Egypt.

Led by King Henry V, outnumbered English knights and archers slaughter French knights at Agincourt in 1415.

The aircraft carrier USS Enterprise becomes the most decorated ship of World War II while fighting against Japanese forces in the Pacific.

Matt's pain from his 20 year old lost limb is solved.

DraftKings Sportsbook, a top-rated sportsbook app!

Paid programming.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

Armored vehicles change the way wars are fought.

The weapons and wars of ancient Egypt.

Led by King Henry V, outnumbered English knights and archers slaughter French knights at Agincourt in 1415.

The aircraft carrier USS Enterprise becomes the most decorated ship of World War II while fighting against Japanese forces in the Pacific.

The Enterprise faces kamikaze attacks as the U.S. Navy closes in on Okinawa to tighten the Allies' grip on Japan and secure victory in the Pacific during World War II.

The mercenary pilots of the American Volunteer Group that fought Japan, became known as "Flying Tigers.".

Armored vehicles change the way wars are fought.

The weapons and wars of ancient Egypt.

Led by King Henry V, outnumbered English knights and archers slaughter French knights at Agincourt in 1415.

The aircraft carrier USS Enterprise becomes the most decorated ship of World War II while fighting against Japanese forces in the Pacific.

Brilliant tactics and battlefield discipline help the Spartans spearhead the Greek victory over the Persians in the Battle of Plataea in 479 B.C., avenging the defeat of the 300 Spartans at Thermopylae.

Green Beret Terry Schappert goes to Scotland to research the 1297 Battle of Stirling Bridge, where William "Braveheart" Wallace and his ragtag forces took on Edward I's 13,000-strong English army.

At the height of the Cold War, the Strategic Air Command controls thousands of nuclear weapons, planes and missiles.

American pilots of the Cactus Air Force match skills and instincts with top Japanese aces as they battle in the skies above Guadalcanal.

The average American soldier hauls over 100 pounds of gear during World War II.

The weapons of World War II included instruments that pierced the dark and others that released the power of the atom.

At the height of the Cold War, the Strategic Air Command controls thousands of nuclear weapons, planes and missiles.

American pilots of the Cactus Air Force match skills and instincts with top Japanese aces as they battle in the skies above Guadalcanal.

The average American soldier hauls over 100 pounds of gear during World War II.

The weapons of World War II included instruments that pierced the dark and others that released the power of the atom.

Brilliant tactics and battlefield discipline help the Spartans spearhead the Greek victory over the Persians in the Battle of Plataea in 479 B.C., avenging the defeat of the 300 Spartans at Thermopylae.

Green Beret Terry Schappert goes to Scotland to research the 1297 Battle of Stirling Bridge, where William "Braveheart" Wallace and his ragtag forces took on Edward I's 13,000-strong English army.

Paid programming.

Even if YOU do everything right to protect yourself, company and institutional data breaches are out of your control. Nearly 1 out of 4 US consumers have been a victim of identity theft. Find out how LifeLock can help protect your identity.

Paid programming.

Paid programming.

The average American soldier hauls over 100 pounds of gear during World War II.

The weapons of World War II included instruments that pierced the dark and others that released the power of the atom.

Brilliant tactics and battlefield discipline help the Spartans spearhead the Greek victory over the Persians in the Battle of Plataea in 479 B.C., avenging the defeat of the 300 Spartans at Thermopylae.

Green Beret Terry Schappert goes to Scotland to research the 1297 Battle of Stirling Bridge, where William "Braveheart" Wallace and his ragtag forces took on Edward I's 13,000-strong English army.

At the height of the Cold War, the Strategic Air Command controls thousands of nuclear weapons, planes and missiles.

American pilots of the Cactus Air Force match skills and instincts with top Japanese aces as they battle in the skies above Guadalcanal.

The average American soldier hauls over 100 pounds of gear during World War II.

The weapons of World War II included instruments that pierced the dark and others that released the power of the atom.

Brilliant tactics and battlefield discipline help the Spartans spearhead the Greek victory over the Persians in the Battle of Plataea in 479 B.C., avenging the defeat of the 300 Spartans at Thermopylae.

Green Beret Terry Schappert goes to Scotland to research the 1297 Battle of Stirling Bridge, where William "Braveheart" Wallace and his ragtag forces took on Edward I's 13,000-strong English army.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

New information details how a nation ranked 19th in the world's militaries in 1939 emerged six years later as the planet's only atomic superpower.

Taking a B-2 Stealth Bomber on a mock bomb-run; atomic bomb missions of World War II.

World War II veterans describe how they spent brief interludes that became treasured wartime memories.

New information details how a nation ranked 19th in the world's militaries in 1939 emerged six years later as the planet's only atomic superpower.

Taking a B-2 Stealth Bomber on a mock bomb-run; atomic bomb missions of World War II.

World War II veterans describe how they spent brief interludes that became treasured wartime memories.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

Prosvent is a doctor formulated blend of rejuvenating herbs and nutrients that help protect overall prostate health.

Matt's pain from his 20 year old lost limb is solved.

Even if YOU do everything right to protect yourself, company and institutional data breaches are out of your control. Nearly 1 out of 4 US consumers have been a victim of identity theft. Find out how LifeLock can help protect your identity.

For years, Total Gym has been a leader in fitness, empowering millions to achieve their health goals. One piece of equipment does it all. Over 100 unique exercises. No assembly required. Folds for storing. Go to TotalGymDirect.com for special offers!

Taking a B-2 Stealth Bomber on a mock bomb-run; atomic bomb missions of World War II.

World War II veterans describe how they spent brief interludes that became treasured wartime memories.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

New information details how a nation ranked 19th in the world's militaries in 1939 emerged six years later as the planet's only atomic superpower.

Taking a B-2 Stealth Bomber on a mock bomb-run; atomic bomb missions of World War II.

World War II veterans describe how they spent brief interludes that became treasured wartime memories.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

Fall of Richmond; Lee's harrowing retreat; surrender at Appomattox Court House; Lincoln's assassination; reconstruction.

Asian battle elephants and Europe's medieval knights in armor demonstrate people in the past understood the modern tank's principles combining protection, speed and firepower; ancient antitank weapon.

The behemoth serves in World War II, the Korean War, and Desert Storm.

America's fifth armed force makes daring rescues at sea and deals with terrorist assaults.

Asian battle elephants and Europe's medieval knights in armor demonstrate people in the past understood the modern tank's principles combining protection, speed and firepower; ancient antitank weapon.

The behemoth serves in World War II, the Korean War, and Desert Storm.

America's fifth armed force makes daring rescues at sea and deals with terrorist assaults.

Fall of Richmond; Lee's harrowing retreat; surrender at Appomattox Court House; Lincoln's assassination; reconstruction.

Paid programming.

Even if YOU do everything right to protect yourself, company and institutional data breaches are out of your control. Nearly 1 out of 4 US consumers have been a victim of identity theft. Find out how LifeLock can help protect your identity.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

Kills 99% of Bacteria, Viruses, and Germs with Steam! The 5-in-1 Lightweight, Fast, Powerful, And Completely Chemical Free Steam Cleaner! Lift and remove dirt and stains all around the home!

Paid programming.

America's fifth armed force makes daring rescues at sea and deals with terrorist assaults.

Fall of Richmond; Lee's harrowing retreat; surrender at Appomattox Court House; Lincoln's assassination; reconstruction.

Asian battle elephants and Europe's medieval knights in armor demonstrate people in the past understood the modern tank's principles combining protection, speed and firepower; ancient antitank weapon.

The behemoth serves in World War II, the Korean War, and Desert Storm.

America's fifth armed force makes daring rescues at sea and deals with terrorist assaults.

Fall of Richmond; Lee's harrowing retreat; surrender at Appomattox Court House; Lincoln's assassination; reconstruction.

As Europe falls under the sway of Nazi Germany, America is unprepared for war and the Japanese attack on Pearl Harbor.

Personalities, weapons, firepower and leadership of the battle of Iwo Jima.

World War II U.S. Army Gen. George S. Patton Jr. and his soldiers embark on the road to Germany by invading North Africa Nov. 8, 1942, in the face of opposition by pro-Nazi French forces.

Contestants test their skills with the Black Widow long bow; two contestants must adapt to the revolutionary Gatling gun to stay in the game.

Ships from the ancient world and the societies that created them.

Historians rediscover William Wallace's Scotland, including the Castle of Lanark and Stirling Bridge.

World War II U.S. Army Gen. George S. Patton Jr. and his soldiers embark on the road to Germany by invading North Africa Nov. 8, 1942, in the face of opposition by pro-Nazi French forces.

Contestants test their skills with the Black Widow long bow; two contestants must adapt to the revolutionary Gatling gun to stay in the game.

Ships from the ancient world and the societies that created them.

Historians rediscover William Wallace's Scotland, including the Castle of Lanark and Stirling Bridge.

As Europe falls under the sway of Nazi Germany, America is unprepared for war and the Japanese attack on Pearl Harbor.

Personalities, weapons, firepower and leadership of the battle of Iwo Jima.

DraftKings Sportsbook, a top-rated sportsbook app!

Paid programming.

Matt's pain from his 20 year old lost limb is solved.

Paid programming.

For years, Total Gym has been a leader in fitness, empowering millions to achieve their health goals. One piece of equipment does it all. Over 100 unique exercises. No assembly required. Folds for storing. Go to TotalGymDirect.com for special offers!

Ships from the ancient world and the societies that created them.

Historians rediscover William Wallace's Scotland, including the Castle of Lanark and Stirling Bridge.

As Europe falls under the sway of Nazi Germany, America is unprepared for war and the Japanese attack on Pearl Harbor.

Personalities, weapons, firepower and leadership of the battle of Iwo Jima.

World War II U.S. Army Gen. George S. Patton Jr. and his soldiers embark on the road to Germany by invading North Africa Nov. 8, 1942, in the face of opposition by pro-Nazi French forces.

Contestants test their skills with the Black Widow long bow; two contestants must adapt to the revolutionary Gatling gun to stay in the game.

Ships from the ancient world and the societies that created them.

Historians rediscover William Wallace's Scotland, including the Castle of Lanark and Stirling Bridge.

As Europe falls under the sway of Nazi Germany, America is unprepared for war and the Japanese attack on Pearl Harbor.

Personalities, weapons, firepower and leadership of the battle of Iwo Jima.

Charles Scheffel battles German forces in North Africa; Jack Werner faces bitter combat against the Japanese in the Pacific.

The First Infantry Division, aka Big Red One, of the U.S. Army; decorated veterans from the Big Red One during World War II reflect on tense battlefields of El Guettar, North Africa, Troina, Sicily and Normandy (Omaha beach.).

The ancient Celtic queen of the Iceni tribe spearheads a rebellion against the Romans.

A team of divers builds and tests a deep-sea diving suit; a time-traveling ghost ship; 16th-century war fleet.

The infamous Japanese Zero fighter-aircraft is one of the best of the World War II era.

The ancient Celtic queen of the Iceni tribe spearheads a rebellion against the Romans.

A team of divers builds and tests a deep-sea diving suit; a time-traveling ghost ship; 16th-century war fleet.

The infamous Japanese Zero fighter-aircraft is one of the best of the World War II era.

Charles Scheffel battles German forces in North Africa; Jack Werner faces bitter combat against the Japanese in the Pacific.

The First Infantry Division, aka Big Red One, of the U.S. Army; decorated veterans from the Big Red One during World War II reflect on tense battlefields of El Guettar, North Africa, Troina, Sicily and Normandy (Omaha beach.).

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

Paid programming.

DraftKings Sportsbook, a top-rated sportsbook app!

For years, Total Gym has been a leader in fitness, empowering millions to achieve their health goals. One piece of equipment does it all. Over 100 unique exercises. No assembly required. Folds for storing. Go to TotalGymDirect.com for special offers!

Paid programming.

Paid programming.

A team of divers builds and tests a deep-sea diving suit; a time-traveling ghost ship; 16th-century war fleet.

The infamous Japanese Zero fighter-aircraft is one of the best of the World War II era.

Charles Scheffel battles German forces in North Africa; Jack Werner faces bitter combat against the Japanese in the Pacific.

The First Infantry Division, aka Big Red One, of the U.S. Army; decorated veterans from the Big Red One during World War II reflect on tense battlefields of El Guettar, North Africa, Troina, Sicily and Normandy (Omaha beach.).

The ancient Celtic queen of the Iceni tribe spearheads a rebellion against the Romans.

A team of divers builds and tests a deep-sea diving suit; a time-traveling ghost ship; 16th-century war fleet.

The infamous Japanese Zero fighter-aircraft is one of the best of the World War II era.

Charles Scheffel battles German forces in North Africa; Jack Werner faces bitter combat against the Japanese in the Pacific.

The First Infantry Division, aka Big Red One, of the U.S. Army; decorated veterans from the Big Red One during World War II reflect on tense battlefields of El Guettar, North Africa, Troina, Sicily and Normandy (Omaha beach.).

U.S. Marines assault Japanese-held Tarawa in the Pacific; the fighting in Italy claims a casualty. Narrator: Gary Sinise.

Hitler attempts to drive a wedge between the Allied armies in northern and southern Europe and retake Antwerp, Belgium.

Seventy years after the end of World War II, explorers Mike Scott and Luke Mahoney uncover a hidden Nazi document that reveals hundreds of miles of tunnels that may still be protecting Hitler's final secrets.

Ancient Roman navy SEAL technique of capturing enemy ships from underwater; Roman war dog units; the Mastiff; the samurai sword; the Horro is designed to protect cavalryman from arrow fire.

The Japanese fleet, led by the battleship Yamato, and the small U.S. task group known as Taffy 3 wage battle in the Pacific.

Seventy years after the end of World War II, explorers Mike Scott and Luke Mahoney uncover a hidden Nazi document that reveals hundreds of miles of tunnels that may still be protecting Hitler's final secrets.

Ancient Roman navy SEAL technique of capturing enemy ships from underwater; Roman war dog units; the Mastiff; the samurai sword; the Horro is designed to protect cavalryman from arrow fire.

The Japanese fleet, led by the battleship Yamato, and the small U.S. task group known as Taffy 3 wage battle in the Pacific.

U.S. Marines assault Japanese-held Tarawa in the Pacific; the fighting in Italy claims a casualty. Narrator: Gary Sinise.

Hitler attempts to drive a wedge between the Allied armies in northern and southern Europe and retake Antwerp, Belgium.

Paid programming.

Kills 99% of Bacteria, Viruses, and Germs with Steam! The 5-in-1 Lightweight, Fast, Powerful, And Completely Chemical Free Steam Cleaner! Lift and remove dirt and stains all around the home!

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

Paid programming.

Paid programming.

Ancient Roman navy SEAL technique of capturing enemy ships from underwater; Roman war dog units; the Mastiff; the samurai sword; the Horro is designed to protect cavalryman from arrow fire.

The Japanese fleet, led by the battleship Yamato, and the small U.S. task group known as Taffy 3 wage battle in the Pacific.

U.S. Marines assault Japanese-held Tarawa in the Pacific; the fighting in Italy claims a casualty. Narrator: Gary Sinise.

Hitler attempts to drive a wedge between the Allied armies in northern and southern Europe and retake Antwerp, Belgium.

Seventy years after the end of World War II, explorers Mike Scott and Luke Mahoney uncover a hidden Nazi document that reveals hundreds of miles of tunnels that may still be protecting Hitler's final secrets.

Ancient Roman navy SEAL technique of capturing enemy ships from underwater; Roman war dog units; the Mastiff; the samurai sword; the Horro is designed to protect cavalryman from arrow fire.

The Japanese fleet, led by the battleship Yamato, and the small U.S. task group known as Taffy 3 wage battle in the Pacific.

U.S. Marines assault Japanese-held Tarawa in the Pacific; the fighting in Italy claims a casualty. Narrator: Gary Sinise.

Hitler attempts to drive a wedge between the Allied armies in northern and southern Europe and retake Antwerp, Belgium.

The Allies lay plans for the invasion of France; Bert Stiles and the 8th Air Force try to win air supremacy over Normandy as D-Day arrives.

Viet Cong guerrillas attack major cities and towns in South Vietnam.

An American aircraft carrier fleet turns the tide of World War II in the Pacific by defeating the Japanese Imperial Navy in 1942 at Midway in one of the greatest naval battles in history.

The aircraft carrier USS Enterprise supports the first American invasion of World War II as Marines storm ashore at Guadalcanal in the Solomon Islands in 1942, but the Japanese strike back with a vengeance.

Snipers share their stories, techniques and the factors they have to consider, including terrain, wind speed, temperature, and elevation changes; a look at the high-tech gear snipers carry on classified missions.

An American aircraft carrier fleet turns the tide of World War II in the Pacific by defeating the Japanese Imperial Navy in 1942 at Midway in one of the greatest naval battles in history.

The aircraft carrier USS Enterprise supports the first American invasion of World War II as Marines storm ashore at Guadalcanal in the Solomon Islands in 1942, but the Japanese strike back with a vengeance.

Snipers share their stories, techniques and the factors they have to consider, including terrain, wind speed, temperature, and elevation changes; a look at the high-tech gear snipers carry on classified missions.

The Allies lay plans for the invasion of France; Bert Stiles and the 8th Air Force try to win air supremacy over Normandy as D-Day arrives.

Viet Cong guerrillas attack major cities and towns in South Vietnam.

Matt's pain from his 20 year old lost limb is solved.

Paid programming.

Paid programming.

Paid programming.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

Snipers share their stories, techniques and the factors they have to consider, including terrain, wind speed, temperature, and elevation changes; a look at the high-tech gear snipers carry on classified missions.

The Allies lay plans for the invasion of France; Bert Stiles and the 8th Air Force try to win air supremacy over Normandy as D-Day arrives.

Viet Cong guerrillas attack major cities and towns in South Vietnam.

An American aircraft carrier fleet turns the tide of World War II in the Pacific by defeating the Japanese Imperial Navy in 1942 at Midway in one of the greatest naval battles in history.

The aircraft carrier USS Enterprise supports the first American invasion of World War II as Marines storm ashore at Guadalcanal in the Solomon Islands in 1942, but the Japanese strike back with a vengeance.

Snipers share their stories, techniques and the factors they have to consider, including terrain, wind speed, temperature, and elevation changes; a look at the high-tech gear snipers carry on classified missions.

The Allies lay plans for the invasion of France; Bert Stiles and the 8th Air Force try to win air supremacy over Normandy as D-Day arrives.

Viet Cong guerrillas attack major cities and towns in South Vietnam.

The Allies get bogged down in Normandy's hedgerows after D-Day; victory turns to horror on Saipan in the Pacific.

Fedayeen fighters and the U.S. Marines engage in a firefight along Ambush Alley.

The Allied armies launch the first major attack against Hitler's Fortress in Europe; half a million Allied soldiers, sailors and airmen will fight a bloody battle of attrition in one of the largest combined operations of World War II.

For six months in 1944, Allied forces battle German forces for control of a Benedictine monastery at Monte Cassino.

Investigating history's most impregnable fortresses; the castle that helped create Great Britain; Cappadocia's invisible underground defensive systems; Mayan killer bee castle defenses; the Roman siege of Alesia in Gaul.

The Tuskegee Airmen of World War II.

The Allied armies launch the first major attack against Hitler's Fortress in Europe; half a million Allied soldiers, sailors and airmen will fight a bloody battle of attrition in one of the largest combined operations of World War II.

For six months in 1944, Allied forces battle German forces for control of a Benedictine monastery at Monte Cassino.

Investigating history's most impregnable fortresses; the castle that helped create Great Britain; Cappadocia's invisible underground defensive systems; Mayan killer bee castle defenses; the Roman siege of Alesia in Gaul.

The Tuskegee Airmen of World War II.

The Allies get bogged down in Normandy's hedgerows after D-Day; victory turns to horror on Saipan in the Pacific.

Fedayeen fighters and the U.S. Marines engage in a firefight along Ambush Alley.

Even if YOU do everything right to protect yourself, company and institutional data breaches are out of your control. Nearly 1 out of 4 US consumers have been a victim of identity theft. Find out how LifeLock can help protect your identity.

Paid programming.

Matt's pain from his 20 year old lost limb is solved.

Paid programming.

Investigating history's most impregnable fortresses; the castle that helped create Great Britain; Cappadocia's invisible underground defensive systems; Mayan killer bee castle defenses; the Roman siege of Alesia in Gaul.

The Tuskegee Airmen of World War II.

The Allies get bogged down in Normandy's hedgerows after D-Day; victory turns to horror on Saipan in the Pacific.

Fedayeen fighters and the U.S. Marines engage in a firefight along Ambush Alley.

The Allied armies launch the first major attack against Hitler's Fortress in Europe; half a million Allied soldiers, sailors and airmen will fight a bloody battle of attrition in one of the largest combined operations of World War II.

For six months in 1944, Allied forces battle German forces for control of a Benedictine monastery at Monte Cassino.

Investigating history's most impregnable fortresses; the castle that helped create Great Britain; Cappadocia's invisible underground defensive systems; Mayan killer bee castle defenses; the Roman siege of Alesia in Gaul.

The Tuskegee Airmen of World War II.

The Allies get bogged down in Normandy's hedgerows after D-Day; victory turns to horror on Saipan in the Pacific.

Fedayeen fighters and the U.S. Marines engage in a firefight along Ambush Alley.

Plans to invade the country continue until President Truman decides to drop atomic bombs.