Learn how grenade launchers work; how a .30 caliber machine gun compares to a .50 cal; watch Ermey behind the wheel of a Flyer 21; and discover the origin of the word shrapnel.

American Civil War rifles from both sides; the first missile fired from the deck of a sub; deep-sea and crush-proof suits; breaking down a weapon; the Bowie knife; the evolution of a hedgechopper.

The Armored Vehicle Launched Bridge; the Fulton Recovery System; a pilot's survival kit; the ancient Greek warship Trireme; battleship guns; grapeshot.

Medieval catapults; platoons, companies and divisions; the Browning automatic rifle; smart bombs; parachutes; the weapon version of the boomerang.

Light Armored Vehicle; landing craft; World War I Doughboys; training troops; medieval chain mail; the military salute.

Vietnam gun truck; World War II household fat; missile silos; C-17 Loadmaster; Scottish kilts.

full title: Self-Propelled Artillery; Matchlock Musket; Airships; Blue Angels; Pirate Weapons; Depth Charges

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

The bazooka's replacement; mobile command post; Air Force Pararescuemen; 21-gun salute.

Medieval weapons; World War I Lewis gun; carrier pigeons; gliders; anti-tank missile; ejection seats.

Marines' 26-ton AAV stays afloat; jeeps; battering rams; urban warfare; World War II bombers; pictures on World War II airplanes.

Experimental planes; unidentified aircraft; first combat helicopter; directing artillery fire; commando knife.

Motor lifeboat; carrier battle group; Sherman tanks; futuristic rifle; voice mail.