What was British plan in 1941?

In 1941, nazi invaded soviet, after france surrendered so only fight one side, but that was the best time to liberated france! With Germans far east, should recapture the french ports used for submarines, and also to force Germany to fight on 2 directions.

Did they want russia to lose? Still either way if brits expected nazi fail, brits should weaken by attacking Germany west! Forcing a surrender or... expected russia to lose, then germany has even MORE resources to turn against brits, so what was plan other than "lose ships in ocean"?

What was British plan in 1941?
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