Future Gear; Marine Camouflage; Army's New Armored Vehicle

Overview: Steering a World War II tank; Gatling gun's speed; power of the samurai sword.

Overview: Parts of 15th-century armor; World War I infantry backpack; ingredients of a land mine.

Overview: Body armor; accuracy of a medieval crossbow; how World War I pilots shot through their propellers.

Overview: Aiming Civil War artillery pieces; how night-vision technology works; how to clear a minefield.

Overview: Operating the LCAC; cavalry saddles used in the Old West; how gas masks work.

Overview: Maneuverable artillery; musket; Navy airships; precision flying team; pirates; depth charges

Overview: How to refuel a fighter jet in mid-air; how ships send messages using signal flags; what soldiers eat.

Overview: How fast a Revolutionary War soldier could fire a musket; jousting; how to dig a foxhole.

Overview: The ancient Roman pilum is designed to penetrate armor; World War II army radios; how rockets were first used on the battlefield.

Overview: The weapons of the Japanese Ninja; how flamethrowers work; what military dogs do.

Overview: Possible gear for troops on tomorrow's battlefields; Marines design their new camouflage pattern; the Stryker.