Iran on Sunday warned the U.S. to keep its military forces out of Israel. The comments came in a post on the social platform X long associated with Foreign Minister Abbas Araghchi. He referred to the possibility that the U.S. might send one of its complex Terminal High Altitude Area Defense systems to Israel, which would involve the deployment of soldiers to operate it.

Israel is widely believed to be preparing a military response to Iran’s Oct. 1 attack when it fired roughly 180 missiles into Israel.

Israel has been escalating its campaign against Hezbollah with waves of heavy airstrikes across Lebanon and a ground invasion at the border after a year of exchanges of fire. Israel is now at war with Hamas in Gaza and Hamas’ ally Hezbollah in Lebanon.