Sri Lanka, March 17 -- President Donald Trump said the United States should rethink its membership in NATO as he criticized US allies for not helping in the war in Iran.

NATO membership, Trump said, is "certainly something that we should think about," as he criticized US allies for rebuffing his requests for help. Addressing reporters in at the White House, Trump said that the US was not obliged to help when Russia invaded Ukraine, appearing to equate the war there with the war in Iran.

"We help them, and they didn't help us, and I think that's a very bad thing for NATO," Trump said.

Trump said that NATO allies were supportive of the US goal of stopping Iran from getting a nuclear weapon - but they were reluctant to get involved in the...