Seated on the floor of a villa in northeast Tehran around a tablecloth spread with platters of saffron chicken and rice with barberries, about 30 officials of Iran’s Islamic Revolutionary Guards Corps and guests gathered Thursday night for a prayerful celebration.

“A special blessing for the commander who ordered the attack on the American drone and for the fighters who carried it out,” a preacher declared, as recalled by one of the guests present, who said a raucous chorus of “amen” arose from the room.

Their success earlier that day at shooting down an unmanned American Global Hawk surveillance drone (list price $131 million) surprised even some leaders of the Revolutionary Guards. They had wondered themselves whether they could hit an American target so high in the sky, according to the guest.

[Update: Almost a month after Iran shot down an American spy drone, President Trump said the American military downed an Iranian drone.]