All members of the Atlantic alliance stood behind the United States in the Middle East after it briefed NATO on its drone attack that killed Iranian military commander Qassem Soleimani, NATO Secretary-General Jens Stoltenberg said on Monday.

Speaking after a rare NATO meeting on Iran and Iraq in which the United States briefed its allies about last Friday’s drone attack, Stoltenberg also called for a de-escalation of tensions, echoing the statements of some European leaders.