関連ワード:
when was the first tank used in ww1 when was the first tank made in ww1 when was the first tank used during ww1 when was tanks first used in ww1 when was the first tank used in world war 1 when was the first tank invented in ww1 when and where was the first tank used in world war i when did the british first use tanks in ww1 what battle was the first tank used in ww1 when were tanks first used in wwi
