 In October 1987, "Sungari", an American-owned tanker steaming under the Liberian flag, and , a Kuwaiti tanker steaming under the American flag, were hit by Iranian HY-2 missiles.In 1988 AShMs were fired by both American and Iranian forces in Operation Praying Mantis in the Persian Gulf.During this naval battle, several Iranian warships were hit by American AShMs (and by the US Navy's Standard missiles—surface-to-air missiles which were doing double-duty in the anti-ship role).