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Tank - Wikipedia
Tank | Facts, History, & Pictures | Britannica
Tank Encyclopedia - The Online Tank Museum
AbramsX: Redefining the U.S. Army's Main Battle Tank for Future …
Tanks of the United States - Wikipedia
Tank - Armoured Warfare, WWII, Mobility | Britannica
Do Tanks Have a Place in 21st-Century Warfare? - The New York …
History of the tank - Wikipedia
Tank Encyclopedia - YouTube
Modern Tanks - Tank Encyclopedia