I suspect I have an answer for him. The US has never ‘fessed up to how many military criminal prisoners were hung during the war, but there are strong suggestions that hundreds may have met that fate.
They try to suggest that Pvt. Slovik was the only one, but this is not the case.
I know of at least one military prison camp in southern Arizona, completely unknown today except for one reference about it carrying out frequent executions. No trace remains in the desert. It was not near Fort Huachuca, which is still an active military post.
As an aside, today military executions are never carried out, as the president must confirm the execution, and while George W. Bush was willing, the Pentagon intervened before he could order the execution and commuted it to life imprisonment.
Back then, however, execution orders were in the exclusive province of the military. While Supreme Commander Eisenhower authorized the execution of Slovik, in most cases a much lower ranking convening authority was likely able to confirm the sentence.
“They try to suggest that Pvt. Slovik was the only one, but this is not the case.”
Slovik was supposedly the only soldier executed for desertion, but many were executed for murder, rape, etc. [Don’t ask what the ‘etc.’ includes, I’m just covering the bases.]
Pvt. Slovik was the only SHOT, nothing is said about the only one to be executed, at least not in the texts I have read.