Esper and Miley, no doubt per direct orders from Trump, are not ****ing around. Esper said in an off-camera conference that any attempt by this Iranian militia to overrun the embassy would run into a "buzzsaw".
It is refreshing to see this kind of resolve to defend what is American soil. Embassies are considered sovereign territory by the country that runs it. And this is not a return to the Clinton era where the embassies in Tanzania and Kenya were bombed. And, I have to say, the Beirut attack that killed 63 people resulted in more political posturing by Congress and the Reagan administration. The ultimate outrage occurred when the Beirut embassy was moved to a more "secure" location, but a car bomb blew up near this new location in 1984, killing several people.
If you're going to put an embassy in a country, by God you'd better ****ing defend it. Doing anything else sends a wrong message.