Isolationism broadly speaking is the notion that the US is better off withdrawing to fortress America and leaving the rest of the world's nations to fight it out among themselves.
As Iranian President Mahmoud Ahmadinejad proclaims that the countdown to the next Holocaust has begun while actively waging war against the US and its allies on all available fronts, the catastrophe that will follow an American relapse into isolationism and appeasement is undeniable.