[Tublecane]

“unless they see the enemy as an imminent threat - WWI/WWII”

What imminent threat were we under in WWI? So long as you avoided transatlantic ocean liners carrying ammo belowdecks you were fine. Okay, Japan was a threat. Not so much to invade the US, but they did attack us. What about the whole half of the war that was fought in Europe? Where was the threat there?

[ExTxMarine]

What imminent threat were we under in WWI?
Good question - and the answer is that a VERY large portion of the United States were NOT interested in WWI!
However, when Germany tried to enlist Mexico to go to war with the United States, it alerted the American people and started a change in the American thought process! And it showed the American populace that they were not completely out of reach from the war.

What was the European threat during WWII?
After Pearl Harbor was attacked, the United States declared war on Japan. On December 10, Germany declared war on the United States, on December 11, the United States declared war on Germany. I believe the threat from Germany was their expanding European and African foot prints TOPPED by their declaration of war against us.

[ANGGAPO]

The Threat was from them being here. We were next after England, or didn't you know.