Charles Havlat is thought to be the very last American soldier killed in action in the European operations of World War II. The son of Czech immigrants, he took a bullet in the head while on patrol in southern Bohemia; shot by German soldiers who were unaware that a ceasefire had been declared and whose commander later apologised. Pfc Charles Havlat, was the last American GI killed in action on the 5th Division front, and is officially the last American KIA in the entire European Theatre. He was 34 years old.
taken from:
http://www.radio.cz/en/article/66298/limit
May 7, 1945, 08:40: On a dirt road some 12 kilometres into Czechoslovakia, a reconnaissance platoon of the US Army's 803rd Tank Destroyer Battalion, Company C, is blindsided by a hail of enemy machine gun and small arms fire from concealed positions in the woods. Soldiers from the German 11th Panzer Division fire off four rounds of panzerfausts, which explode around the lead American vehicle, an M-8 armoured car. The American GIs in the second vehicle, an open jeep, get the worst of it: Two take hits to the hands and face: Pfc Charley Havlat is killed. The re-con men of the 803rd returned fire until their radio operator received word that, some nine minutes before the ambush, a cease-fire order had gone into effect, and an armistice was in effect. The company got orders to withdraw back into the town of Wallern, now known as Volary. Less than six hours after the attack, Nazi Germany surrendered unconditionally. Taken captive later, the German officer who led the ambush said he knew nothing of the cessation of hostilities until 30 minutes after their effective time and apologised for the incident.