When did Hitler invade England?

Hitler' s planned 1940 invasion of the British Isles with 160,000 troops was cancelled when the Luftwaffe failed to gain air superiority. Hitler then turned East and invaded the Soviet Union. Only an aerial attack was made on the UK during WWII. It could be said that the invasion of the Channel Islands was an invasion but no defense was made on their behalf because of their proximity to occupied France.