A group of five adolescent male lions - dubbed the Musketeers - are wandering the desert looking to find their own kingdom. They come across a lioness, but not all seem interested in settling down.

Five Young Lion Brothers Mate with One Lioness (3:44)

A group of orphaned lion cubs are facing an uncertain future. If they're to survive into adulthood, they will have to convince their reluctant aunt to share her kill with them.

Hostile Lioness Withholds Food from Hungry Orphaned Cubs (3:09)

A brief respite from the frontlines of the Pacific War sees American troops trying to inject a little comfort into their lives: from more habitable living quarters to enjoying the enemy's hidden supply of liquor.

U.S. Troops in the Pacific Treat Themselves to a Little R&R (2:00)

It's 1942 and the USS Silversides, a U.S. submarine submerged in the Pacific, is frantically trying to dodge depth charges dropped by a Japanese warship. Even a near miss could be catastrophic.

Why Depth Charges Don't Have to Touch a Submarine to Sink It (3:52)

Relive the aerial dogfights and naval clashes of the Battle of the Philippines Sea, thanks to stunning color footage. It is a visual record of the battle that underlined U.S. superiority in the Pacific.

Actual Combat Footage of the Battle of the Philippines Sea (3:25)

In 1935, an old wooden boat was found in a lake in upstate New York. It was the USS Philadelphia - the oldest U.S. gunboat ever recovered, dating back to the War of Independence.

The Oldest American Combat Ship Ever Found (2:39)

For the vast majority of American troops, Saipan was their first experience of tropical living. The heat, the beaches, the swaying palm trees - all offered a welcome respite from the ravages of war.

This Pacific Island Gave U.S. Troops a Chance to Recharge (1:50)

On December 16, 1941, the Italian navy launched a daring attack on three British ships outside Alexandria harbor. At the heart of the operation was a unique weapon: a human torpedo.

How Italy Used Human Torpedoes to Attack British Ships (2:12)

Many WWII naval recruits serving on U.S. ships had never been away from home. To pass the time and strengthen their bonds, they organized several colorful initiation rituals.

Rare Color Footage of WWII Navy Hazing Rituals (2:28)

When a shortage of pilots in WWII forced the U.S. Air Force to recruit women, America was captivated - and the public appetite for the Women Airforce Service Pilots (WASPs) became insatiable.

These Women Stepped In to Fill a WWII Pilot Shortage (1:58)

For the U.S., the Battle of Midway wasn't just a turning point in the Pacific, it was also a brilliant naval gamble that paid off in spectacular fashion.

The Wise U.S. Tactic Used to Win the Battle of Midway (3:02)

In 1939, America's military was far from the powerful force it is today, with just 600,000 servicemen. In this remarkable color footage, you'll see some of the ways they spent their time.

A Rare Glimpse of Pre-War Army Life in Color (2:26)

Henny Sundig is a pivotal figure in the history of WWII Danish resistance. In 1943, aged just 19, she risked it all to make a daring journey in her boat, Gerda III, to rescue as many Jews as she could.

How This Brave Young Woman Saved Danish Jews From Nazis (2:40)

It's 1975, and a small Vietnamese civilian aircraft is desperate to land on the flight deck of a U.S. aircraft carrier. It becomes a dramatic race against time to clear the deck before the plane runs out of fuel.

Why the U.S. Military Pushed $10 Million Worth of Helicopters Overboard (2:05)

The U.S. developed the world's first nuclear submarine in 1954 - and the USSR felt pressured to respond. But in their haste to match their Cold War adversaries, they rushed it - and paid a heavy price.

Why the USSR's First Nuclear Submarine Was a Disaster (2:26)

Life for the 110,000 Japanese-Americans living in internment camps was oddly surreal: they could work, study, pray, even join the military. The one thing they couldn't do was leave.

Children in Internment Camps - A Japanese American's Reflection (2:26)

During spawning season, calamari squid become vulnerable in the shallow waters. But they do have one weapon that helps improve their odds - lightning fast jet propulsion.

How Spawning Squid Offer a Buffet for Predators (2:58)

In a sandy gully, a school of razorfish are being stalked by an invisible predator and a master of disguise: the crafty cuttlefish.

A Clever Cuttlefish Goes in for the Kill (1:55)

They might be delicious to us but in the ocean, calamari squid are formidable predators, using concealed tentacles which shoot out toward any prey within a three-foot radius.

The Remarkable Way Calamari Squid Catch Their Prey (1:37)

It's September 11, 2001, and AA Flight 77 has just vanished off the radar. As news starts pouring in of an attack on the World Trade Center, concerned air traffic controllers begin to suspect the worst.

When Air Traffic Control Realized a 9:11 Flight Was Gone (3:25)