Even a dog enlists, why not you? poster

Poster Military Service Act 1916 Enlist Voluntarily Now

United States Army Air Forces Recruiting Poster - 1

United States Army Air Forces Recruiting Poster - 2

World War I US Army Air Service Recruiting Poster Source3

Join the US Marine Corps – US World War One poster

Recruiting poster New York Mounted Rifles

If you can't enlist, invest! Buy a Liberty bond

If you can't enlist, invest! Buy a Liberty bond

Army Service Corps recruiting poster 1915

British Army Recruiting poster Guards

Volunteer Army poster

A Dog of the Regiment (1927) Poster