Im basing it on the fact that the US was already giving out lend lease stuff well before they etnered the war. Had it not been pearl harbor, it would of been something else, a german submarine would of sunken an american ship, and yadda yadda somehow they would probably get involved.
With respect, that is pure speculation. I agree FDR was making lend-lease available, but at a cost to UK.
And you do know that the invasion of the UK in 1940 was essentially impossible
, it would of taken years for germany to construct a powerful navy enough to challenge the british navy.
I do not agree, sadly - what stopped the Nazis from invading UK in 1940/41 was Hitler. The same Hitler who allowed the remnants of the BEF to escape back to UK via Dunkerque, but without any of their outdated equipment