U.S. believes Iran could produce a nuke within several months

Iran would need only several months to build a nuclear weapon if Tehran opted to produce a bomb, Gen. Mark Milley, chairman of the Joint Chiefs of Staff, told Congress.

Milley told congressional lawmakers that Iran could produce enough fissile material for a nuclear weapon within two weeks and it would then only take "several more months" for Tehran to produce an "actual nuclear weapon."

The top U.S. general said that the U.S. military has "developed multiple options" for a potential response.

"But the United States remains committed, as a matter of policy, that Iran will not have a fielded nuclear weapon," Milley said during a House Appropriations Committee hearing, underscoring that the U.S. military has "developed multiple options for our national leadership to consider if or when Iran ever decides to develop an actual nuclear weapon."