On Aug. 1, 1944, less than two months after D-Day, Marine Maj. Peter J. Ortiz, five other Marines, and an Army Air Corps officer parachuted into France to assist a few hundred French resistance fighters known as the Maquis in their fight against the Germans. Ortiz had already worked and trained with the Maquis in occupied France from Jan. to May 1944.
The mission, Operation Union II, faced a rough start. Due to the danger of the Marines being spotted or drifting away from the drop zone, the jump was conducted at low altitudes.
"Because of the limitations, we had to make this jump at 400 feet," said Sgt. Maj. John Bodnar in a Marines.com interview. "As soon as we were out of the aircraft our chutes opened and the next thing I remember is I was on the ground."
One Marine's parachute, that of Sgt. Charles Perry, failed to open. At such low altitudes, using a reserve wasn't an option, and Perry was killed when he hit the drop zone. Another Marine was injured too badly to continue. The four Marines able to perform the mission were Ortiz, Sgt. Jack Risler, Sgt. Fred Brunner, and Bodnar who was also a sergeant at the time.
The Marines, some of the only ones to serve in the European theater in World War II, would make good use of the personnel they had. First, they recovered 864 supply crates of weapons and ammunition that were dropped after the men parachuted in. Then, they linked up with the Maquis and began training the resistance fighters.
For a week, the Marines schooled the resistance fighters on how to use the new equipment, how to conduct ambushes, and how to harass German forces. They also conducted reconnaissance and mapped prime areas to conduct ambushes.
When the fighters began conducting the ambushes, they were very successful. The exact casualty counts are unknown, but the Maquis and their Marine handlers inflicted so much damage so quickly that German intelligence believed an allied battalion had jumped in to assist the resistance instead of only six Marines and a soldier.
The Germans did not take the threat lightly. They remembered Ortiz from the Jan.-May 1944 mission and were still angry about his theft of 10 Gestapo trucks and a pass that let him drive the vehicles right through checkpoints. They began executing captured resistance members in public areas in an attempt to deter others. On Aug. 14, an entire town was murdered after the Germans found injured resistance members hiding in the church.