DUBAI, United Arab Emirates — Iran threatened to target recreational and tourist sites worldwide and insisted it was still building missiles. Its supreme leader issued another defiant statement on Friday, nearly three weeks into U.S.-Israeli strikes that have killed a slew of Tehran’s top leaders and hammered its weapons and energy industries. The United States was meanwhile deploying three more warships and roughly 2,500 additional Marines to the Middle East, a U.S. official told The Associated Press. Iran fired on Israel and energy sites in neighboring Gulf Arab states as many in the region marked one of the holiest days on the Muslim calendar. Iranians were also celebrating the Persian New Year, known as Nowruz, a normally festive holiday that is more subdued this year. With little information coming out of Iran, it was not clear how much damage its arms, nuclear or energy facilities have sustained since the war began Feb. 28 or even who was truly in charge of the country. But Iran has showed it is still capable of attacks that are choking off oil supplies and denting the global