What to know about the Iranian nuclear sites that were hit by US strikes

U.S. forces have attacked three Iranian nuclear and military sites, further upping the stakes in the Israel-Iran war. President Donald Trump said Saturday that the strikes hit the Natanz, Fordo and Isfahan sites. He says Fordo was the primary target. The Atomic Energy Organization of Iran later confirmed attacks on all three sites. Iran has multiple major sites associated with its nuclear program, including one in the heart of its capital Tehran. Its Natanz enrichment site has been targeted several times in suspected sabotage attacks by Israel.