Poster - Food will win the war

As we fight, you too must work for the victory! — German World War Two poster

Poster, Peace, If You Don't Want to Fight Anymore, Win the War Against Pans Poland, 1919–22 (CH 18638829-2)

Poster - Espionage (1937) 01

Black war poster

Knowledge wins - American World War One poster

"I need your money to win this war" - NARA - 514563