"Minister Gallant has been an important partner on all matters related to the defense of Israel. As close partners, we will continue to work collaboratively with Israel's next minister of defense," a State Department spokesperson said.

Gallant has served as a main pointperson for the United States in the 13-month war in Gaza and now in Lebanon, with US officials seeing him as a professional without the ideological bent of some in Netanyahu's cabinet.

Just Monday, Secretary of State Antony Blinken spoke by telephone to Gallant to press US demands for greater humanitarian aid into Gaza, with a deadline looming next week in a threat to cut off some US military assistance without progress.

President Joe Biden's own relationship has deteriorated with Netanyahu, who announced Gallant's dismissal just as the United States was electing Biden's successor.