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"The Leopard 1 Main Battle Tank was post-war Germany&amp;#039;s first tank designed and built in West Germany. This tank can be sealed and pressurized for use in biological warfare situations. Learn more about the Leopard 1 Main Battle Tank."^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/leopard-1-main-battle-tank1.htm>