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How Strykers Work (3:38)
The Stryker combat vehicle is the newest form of military technology used in moving troops around. See how the Stryker works in this HowStuffWorks video.
How Machine Guns Work (2:20)
Machine guns, one of the most powerful weapons ever invented, use special recoil systems and belt feeding systems to produce amazing firepower. See how machine guns work in this video from HowStuffWorks.
Ultimate Guide to Submarines: Sonar (1:51)
A submarine's strength is its stealth, and it must rely on sonar to detect oncoming ships. Brought to you by the Discovery Channel.
FutureWeapons: KRISS (2:03)
The TDI KRISS Super V is a prototype machinegun that compensates for recoil by using a patented system of moving parts. Brought to you by the Discovery Channel.
Missile Defense Agency Series Opening (2:10)
Opening video of MDALink series - overview of the MDA.

