Good point

To be fair I had excluded that from my thinking which I shouldn't as I spent couple of weeks in what was St Nazaire pocket in 2015 and visited Lancastria memorial / HMS Cambletown Memorial / U Boat pens and Bunkers on coast.

I didn't know scale of what was in Brittany but do remember at Blockhaus they telling is the Bois de Polonaise was couple of Km further north as there were a sizeable contingent of Poles who were fighting with BEF / French Army who hid they awaiting Embarkation,

In August 1939 Stalin offered UK and France the option of putting 1 million men plus artillery on Poland's western border with Germany.
UK and French delegations in Moscow refused as they stated they had no power to negotiate..
If they had agreed then believe start of WW2 would have been postponed...................... maybe not for long but it would have been postponed.

Tornadoken- and I quote ' The word "Yalta" came to stand for the appeasement of world communism and abandonment of freedom'. Churchill had urged Roosevelt to continue the war in Europe against Stalin, but Roosevelt took Stalin at his word. The world was already a dangerous place in May 45. RR nor anyone else for that matter ever got a bean for selling those Nenes. As for Russia being our gallant ally, they had sold the Germans oil that powered their bombers during the Blitz on London.

Do you have a source for that ?
You're basically saying that the USSR offered to invade the whole of Poland.

Racedo, is right. All comes from documents released about 10 yes ago I am with think.

Stalin 'planned to send a million troops to stop Hitler if Britain and France agreed pact' - Telegraph

USSR wanted UK and France support to pressurise Poland to allow 1 million men on German border, they were not to invade but to "transit" and stay on border.

Yeah - Stalin was willing to face up to Hitler IF he was given something in return............ but neither the British nor the French wanted to deal with Stalin and sent a relatively low level delgation to Moscow

"The US was effectively at war with Germany from roughly September 1941, when the US Navy was ordered to sink U-Boats on sight."

but only west of Iceland..........................

and only 2 years too late..

Racedo after a memrial ceremony for a Lancaster that crashed between Nantes and St Nazaire we went to lay a wreath on the OP CHARIOT memorial - father of a friend in Lymington was Captain of HMS Cambeltown and one of the VC winners that day. I was interrupted as I was saying the "They shall not grow old..."" bit by an immaculately dressed elderly French woman, and she asked what I was doing. I explained the link and she told me that she was 84 and as teenager had watch the fighting in the St Nazaire raid, and 2 years earlier had seen the Lancastria bombed and sunk. It was a quiet drive home.