In the summer of 1940, German military intelligence, known as the Abwehr, launched Operation Lena. This mission aimed to infiltrate Britain with spies and saboteurs in preparation for the planned invasion called Operation Sea Lion. The idea was to gather intelligence and sabotage British defenses. In theory, it was a strategic move. In practice, it became a series of farcical failures. Between June and September 1940, about 20 German agents were sent to Britain. They arrived by boat or parachute