Answer:
Both Stalin and Hitler intended to invade the other one once they were ready. So, with Hitler not invading Russia in June of 1941, a lot of things play out differently:
Hitler does NOT conquer the United Kingdom, Great Britain, England, or any other combination of countries/territories across the English Channel. He never had the capabilities before June 1941 and the British built up defenses faster than the Germans built up amphibious capabilities. Winning this hypothetical invasion was never a realistic scenario, the Germans just never had the cargo capabilities to supply an invasion force across the channel. Sure, they could have landed and created a beachhead, but the logistics and balance of forces just don’t work out for them. Not invading Russia doesn’t change this. 21 miles of channel was too much of a barrier (think about what it took to cross the Rhine and what it would have taken to invade Japan).
Step-by-step explanation: