The United States has attacked three sites in Iran, inserting itself into Israel’s war aimed at destroying the country’s nuclear program in a risky gambit to weaken a longtime foe that prompted fears of a wider regional conflict. Addressing the nation from the White House, President Donald Trump asserted that Iran’s key nuclear sites were “completely and fully obliterated.” There was no independent damage assessment. The Atomic Energy Organization of Iran confirmed that attacks took place on its Fordo, Isfahan and Natanz sites, but it insisted that its nuclear program will not be stopped.