Solders Mail, American Red Cross Postal Card

Soldiers' Mail with marking for No Postage Necessary bearing flag cancel 'Military Post Office Solders Mail'
Reverse reads 'THE SHIP ON WHICH I SALED HAS ARRIVED SAFELY OVERSEAS' American Expeditionary Forces
During World War I, U-boats from Germany and Austria-Hungary sank over 6,000 Allied ships. Soldiers lost just getting to the European Battlefields was a major concern for the familites back home, and receiving word that their sholdier had made the crossing safely was cause for joy.