Stalemate means loss, in the context of WWII.
The first nation to light off a nuke (of the fission only variety) may very well have been Germany in that case, not the US. And I have a good idea where it may have been used.
Much of the ‘US’ nuclear programme came from Britain.
In 1940, we handed for nothing all our nuclear secrets/research to you. Britain had already developed its own programme in 1940, and in 1941-42, post American entry, worked with you. Had America not entered the war, we would have built our own atomic bomb, using Canada as a base.
The Manhattan Project was an allied project. The idea that America alone built the bomb is wrong, bad history made worse by tv and film and lazy media.