Seoul, South Korea CNN —For the first time in decades, a nuclear capable US Navy ballistic missile submarine has made a port call in South Korea, in a move that comes just days after North Korea test-fired what it said was a solid-fueled intercontinental ballistic missile. The presence of the Ohio-class ballistic missile submarine in the South Korean port city of Busan was announced by the country’s Defense Ministry on Tuesday afternoon. The NCG is a joint US and South Korean panel set up by the countries’ leaders at a summit in Washington in April. The Nuclear Threat Initiative at the James Martin Center for Nonproliferation Studies estimates that each Trident missile can carry four nuclear warheads, meaning each US ballistic missile submarine could be carrying about 80 nuclear warheads. One arriving in South Korea on a port visit – which must be arranged 24 to 48 hours in advance – would be far more visible, giving North Korea an advantage, Schuster said.

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Persons: Kurt Campbell, Kim Yo Jong, Kim Jong Un, ”, Kim, “, James Martin, Joe Biden, Yoon Suk, ” Biden, Biden, Yoon, ” Carl Schuster, ” Blake Herzinger, Schuster, Kim Jong, we’ve, ” Schuster Organizations: South Korea CNN —, North, country’s Defense, US National Security Council, Nuclear Consultative, DPRK, Democratic, Nuclear, James, James Martin Center, Nonproliferation, Trident, South, ROK, US Navy, Pacific Command’s Joint Intelligence Center, Pacific, United States Studies Centre Locations: Seoul, South Korea, North Korea, Ohio, Korean, Busan, Washington, Korea, Democratic People’s Republic of Korea, Pyongyang, United States, Hawaii, –