WW2 Tanks

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Across
  1. 3. The amount of a full crew for the U.S. tank mentioned in another clue
  2. 4. German tank otherwise known as Panzerkampfwagen V
  3. 5. the month the war ended
Down
  1. 1. the country in which the first tank was ever made
  2. 2. The Tank predominantly used by the U.S.
  3. 3. the number of tons 'little Willie' the first ever tank weighed