Remember this?

Fall of Saigon

It’s not actually a photo of American personnel being evacuated from the roof of the American embassy, at the the end of the Vietnam war; they were being evacuated from the roof of the nearby apartment building that housed the CIA. And when it happened, this image meant a lot. It meant that a long period of US foreign and military policy had just collapsed in utter defeat.

We’re this close to the same thing happening in Baghdad:

Five Key Implications if Baghdad Falls to ISIS

One big difference: the North Vietnamese didn’t actually behead anyone left behind, then put the videos on YouTube.