The Iran–Israel proxy war, also known as the Iran–Israel Cold War, is an ongoing proxy war between Iran and Israel. In the Israeli–Lebanese conflict, Iran has supported Lebanese Shia militias, most notably Hezbollah. In the Israeli-Palestinian conflict, Iran has backed Palestinian groups such as Hamas. Israel has supported Iranian rebels, such as the People's Mujahedin of Iran, conducted airstrikes against Iranian allies in Syria, assassinated Iranian nuclear scientists, and directly attacked Iranian forces in Syria. In 2024 the proxy war escalated to a series of direct confrontations between the two countries, and in June 2025, the Iran–Israel war began, involving the United States.