During a visit to South Korea, US President Donald Trump said he has approved South Korea to build a nuclear-powered submarine in the United States, with construction planned in Philadelphia. He touted a shipbuilding “comeback” and made the announcement ahead of a meeting with China’s Xi Jinping. South Korean President Lee Jae Myung asked to allow fuel for nuclear-propelled submarines, stressing they would not carry nuclear weapons but would better track North Korean and Chinese vessels. Specifics on size and cost were not disclosed. Seoul pledged $150 billion to boost US shipbuilding capacity.

Prepared by Lauren Mitchell and reviewed by editorial team.