John Muir's Transformative Climb Up Mt. Rainier

On September 2, 1945, Japan delivered its unconditional surrender in WWII. Twelve million American troops went home as civilians, to work and raise families--ushering the U.S. into a new age of global leadership.

Japan's Surrender in WWII Ushered in a New World Order (2:06)

An anxious student pilot is attempting to land a C2-A Greyhound on a U.S. aircraft carrier. It's part of a qualifications test she must pass ten times in order to be certified as a C2-A pilot.

Here's What it Takes to Become a Certified C2-A Pilot (3:21)

Two rival explorers have teamed up on a very special project in the Baltic sea. Their aim is to locate and explore the wreck of one of the most historic ships in Swedish history: Mars.

Team of Explorers Uncover Famous Sunken Ship (3:23)

The AC-130 is the world's biggest flying artillery gunship - nicknamed 'Hell in the Sky.' With three side-firing weapons, a 25mm Gatling gun, a 40mm Bofors cannon, and a 105mm howitzer, it's easy to see why it got its name.

Deadly AC-130 Gunship in Action Firing All Its Cannons (3:07)

It's November 2001, and lieutenant colonel Allison Black is a navigator on an AC-130 gunship flying over Afghanistan. She recounts a typical combat mission during operation Enduring Freedom.

AC-130 Gunship Navigator Recalls Taliban Combat Mission (2:56)

The USS Guadalcanal has spotted a German sub in the waters off the coast of Madeira. They immediately order a strike with the navy's new and devastating weapon: the hedgehog.

A U.S. Warship Fires an Anti-Sub Weapon on a German U-Boat (4:24)

Allied POWs rescued in the South China Sea have an incredible story to tell. They'd been kept in a secret prison camp in Thailand, where their Japanese captors forced them to build a railroad from Thailand to Burma.

These POWs Were Forced to Build the Bridge Over River Kwai (2:34)

Domesticating horses gave the ancient Scythian nomads speed and mobility. But they were also a vital source of nutrition, providing both meat and milk.

Why Horses Are So Vital in the Lives of These Nomads (1:57)

After a long-drawn out conflict in the Pacific, the troops needed a morale boost. And the United Service Organizations provided it in spades, thanks to spectacular shows by Hollywood legends like Bob Hope and Joe E. Brown.

Why USO Tours Were Vital for Troop Morale in the Pacific (2:01)