It may not be “far more powerful than the aircraft carrier” — as President Trump said in a recent interview, but a well-armed U.S. submarine has arrived in Korea.

The Ohio-class guided-missile submarine Michigan pulled in to the South Korean port of Busan Tuesday for what the U.S. Navy called a “routine visit.”

“During the visit sailors will experience the culture and history of the ROK [Republic of Korea], as well as foster outstanding relations between the U.S. Navy, ROK military and the local Busan community,” the U.S. Navy said in a press release. […]