The conflict between the US and Iran has escalated significantly over three days, drawing in regional allies and sparking global economic concerns. Israel launched strikes on Tehran and Beirut targeting Iranian military sites and Hezbollah, while Iran retaliated by targeting locations in Arab states, including the US embassy in Saudi Arabia. US President Donald Trump anticipates a conflict lasting "four weeks," with Gen. Dan Caine warning of further US losses. Three US military aircraft crashed in Kuwait due to friendly fire, and Israel conducted strikes in Lebanon, killing over 50 people. In Iran, joint US-Israeli strikes have resulted in at least 555 deaths, including 168 at a girls' elementary school, and the death of Iran's supreme leader, Ayatollah Ali Khamenei.