Are those red armbands? In WW1?
Edit: does that tank say Axis?
WW1 and WW2 were not the same war.
WW1 was between the Triple Entente and the Central Powers, the Entente consisting of Britain, France, Russia, and later Italy, and the Central Powers consisting of the German Empire, the Austro-Hungarian Empire, the Ottoman Empire, and (initially) Italy. The national socialists did not exist yet.