Back him up! – Canadian World War One poster

Back him up poster, United States, World War I (POSTERS 39)

Keep all Canadians busy — Canadian World War One poster

Back them up! — British World War Two poster

Back them up! — British World War Two poster

Back them up! – British Word War Two poster

Back them up! — British World War Two poster

Back them up – British World War Two poster

Back them up! — British World War Two poster

Your chums are fighting — Canadian World War One poster

A Happy New Year to our gallant soldiers! – British World War One poster

Back up the fighting forces — Welsh World War Two poster

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