Green Zone.

This is coolbert:;

"U.S. to evacuate substantial number of personnel from Baghdad embassy"
 
"The embassy is going to remain open, however. This is, then, another equivocal half-measure from Obama. If Sunni jihadists enter Baghdad, Americans may end up wishing he had evacuated the embassy entirely. As it is, he is hedging his bets."

Largest American embassy in the world with the largest staff. And in the Baghdad area, that "Green Zone" many American contractors I might assume. Winnow the number down considerably in advance so if the heliborne operation ala Saigon 1975 begins again then fewer persons to evacuate.

Merely the appearance of American withdrawal a bad sign, and interpreted correctly by all observers. Panic the result, to the detriment of all.

coolbert.