Did the Americans help with the Dieppe invasion on August 17th 1942?

No, the Americans did not participate in the Dieppe invasion on August 17, 1942. The operation was primarily a British and Canadian effort, aimed at testing German defenses and gathering intelligence. While the United States was involved in World War II, their forces were not directly engaged in this particular raid. The operation ended in significant casualties and is often viewed as a costly lesson for future Allied operations.