Tensions soar as Iran vows to respond for Soleimani killing

U.S. orders its citizens to leave Iraq, closes embassy in Baghdad as tensions soar

Protesters burn a U.S. flag.
Protesters burn a U.S. flag during a demonstration over the U.S. airstrike in Iraq that killed Iranian Revolutionary Guard Gen. Qassem Soleimani, in Tehran, Iran, Friday.
Vahid Salemi | AP