In April 2016, US Supreme Court ruled Iran must pay almost $2bn to victims of 1983 Beirut barracks bombings. In response, Iranian parliament voted a bill that would obligate the government to claim compensation from the United States for its hostile actions against Iran (including 1953 Iranian coup d'état and United States support for Iraq during the Iran–Iraq war). Under the rules of combat, US troops have no clear legal right to sue. But the judge ruled that the troops were on a peacekeeping mission under peacetime rules of engagement. Therefore, survivors and family members could sue Iran under a 1996 law that allows US citizens to take legal action against nations that sponsor terrorism.