Knights of Columbus — American World War One poster

Your Liberty Bond will help stop this – US World War One poster

The Crusaders — Australian World War One poster

Seize arms and join our ranks, all ye of Czechoslovak birth! — Czechoslovak World War One poster

Joan of Arc poster, United States, World War I (POSTERS 51)

Ye who are warriors of God — Czechoslovak World War One poster

God's thunderbolts and heroes' bullets to punish injustices! — Czechoslovak World War One poster

Red Cross poster, United States, World War I (POSTERS 43)

Red Cross poster, United States, World War I (POSTERS 52)

Subscribe to the Sixth War Loan — Austrian World War One poster

German World War One poster

The Great Sacrifice — British World War One poster

For Czech independence — Czechoslovak World War One poster