The United States and Iran have had poor relations since the 1979 Iranian Revolution. Since the October 7 attack on Israel, tensions between the two countries have grown even higher due to attacks against US and Israeli targets by Iran-backed groups. This has led many to speculate that tensions between the two countries could escalate into an all-out war, particularly if Donald Trump wins the 2024 US election and pursues a more aggressive policy against Iran than Joe Biden. If the US were to go to war with Iran, it is likely that Russia (and possibly other countries hostile to the US) would provide Iran with as much aid as it could as payback for the US and NATO arming Ukraine, which could complicate US invasion plans.