Hazed,
Think about what you wrote.
Did England have an official military alliance with Poland?
Did the US have any such alliance with any of the European countries prior to WW2? (Let alone WW1; we won't go into the quite real possibility that the Lusitania incident was a "set up" to allow the US to enter WWI legitimately.)
Additionally, the League of Nations had absolutely no power to coerce. It had no power to do much of anything.
The UN is a post-WW2 institution and it has little power, as you may have noticed.
You might pause, however, to consider that NATO and the UN both have their roots deep in the pre-WW2 situation. Both of these institutions now allow and provide for legitimate US intervention without a direct incident or cause of war against the US, a rather large change in the situation.
There was no way for Roosevelt to involve the US in the European war without "causus belli", humanitarian or moral issues aside.
I'm sure you are aware of the strong isolationist sentiment in the US after WWI. It was still there in 1939; we had no mutual defense treaties with European nations.
I refer one and all once again to George Washington's farewell address; there were then.. and are now.. many people quite familiar with it and in agreement with it.
Had Hitler not been so stupid as to declare war on the US, there still would not have been a legitimate "causus belli" to enter the European war after Pearl Harbor.
Stop a minute and look at your justification for demanding immediate US intervention in '39. Then look around today's world at the nations where people are being slaughtered and explain to me why Britain hasn't declared war and sent troops. If you want trouble spots to examine, put "human rights genocide" in a search engine... you'll find enough.
EDIT: I'll be happy to continue this discussion in the "O-Club" Forum if you like, however, this will be my last reply here. This isn't really what this thread is about.
[ 08-23-2001: Message edited by: Toad ]