The two men in this photograph are Technical Sergeant William E. Thomas and Private First Class Joseph Jackson of the 333rd Field Artillery Battalion, but at the time of the photograph were part of the 969th Artillery Battalion, taken on March 10, 1945.
Scrawling such messages on artillery shells in World War II was one way in which artillery soldiers could humorously express their dislike of the enemy.
The 333rd Field Artillery Battalion suffered tremendous casualties in the early stages of the Battle of the Bulge in late 1944, being overrun on December 17. The survivors ended up in the 969th Artillery Battalion for the rest of the battle, where they provided vital fire support for the 101st Airborne Division during the siege of Bastogne.