The Nazi Plan to Kill Dwight Eisenhower

A plane carrying French and British military really did crash off the coast of Spain, killing everyone on board. Among the wreckage was accurate correspondence between the Allied forces revealing the true movements of Dwight Eisenhower himself. When the body of their man was returned to the Brits, they were able to determine that the sensitive letter on his person had been unopened. A notebook on one of the French officers was copied and transmitted to Nazi intelligence, but they dismissed it as disinformation. So the plan, we followed this entire time, actually happened in real life and it didn't work.