President Biden, who has used increasingly robust language to criticize Mr. Netanyahu’s war in Gaza, has also repeatedly affirmed the country’s right to defend itself and sent weapons to the country. He said he would convene a meeting of the Group of 7 leaders on Sunday. The United Nations Security Council was also scheduled to hold an emergency meeting to discuss the attack.Several hundred Iranians gathered in Tehran to celebrate the attack. Iran’s Foreign Ministry described the attack as a defensive measure, and the country’s Islamic Revolutionary Guards Corps warned the United States against getting involved.