World War II Recruiting Posters

How To Be A Retronaut posted a nice set of recruitment posters from World War II.  The group includes not only the armed services, but also support groups like the U.S. Cadet Nurse Corps, SPARS, and the U.S. Merchant Marine.  During the period of the war when German U-Boats roamed the Atlantic at will, a career in the Merchant Marine could easily be as dangerous as combat.