The Israel Defense Forces said Thursday that Mohammed Deif, a top Hamas military leader, was killed in Israeli strikes in Khan Younis, southern Gaza, in July. The news of Deif’s death came as thousands gathered in Iran for the funeral for Hamas political leader Ismail Haniyeh, who was assassinated on Wednesday. Hamas and Iran both blamed Israel and vowed revenge, though Israel has declined to comment on the operation. The funeral for senior Hezbollah commander Fuad Shukr, who was killed in an Israeli airstrike in Beirut, will be held later Thursday. Secretary of State Antony Blinken issued a tough demand to “all parties” in the Gaza conflict to stop taking escalatory actions as tensions in the Middle East threaten to spill over into all-out war.