JERUSALEM — The Israeli military said Thursday that it has confirmed that the head of Hamas’ military wing, Mohammed Deif, was killed in an airstrike in Gaza in July. The announcement comes a day after an apparent Israeli strike in the Iranian capital killed Hamas’ top political leader. [time-brightcove not-tgx=”true”] The rapid events this week have left U.S., Egyptian and Qatari mediators scrambling to salvage talks for a cease-fire deal in Gaza.