U.S. Pacific Command confirms the USS Tucson, a Los Angeles-class nuclear powered submarine, entered the South Korean port of Jinhae in South Gyeongsang Province last Saturday as part of a redeployment to the Indo-Pacific region.

The submarine's arrival came just days before U.S. B-1B Lancer bombers flew with South Korean fighter jets over the Korean Peninsula Tuesday night in a joint exercise.
 
A second submarine, the Ohio-class USS Michigan, is scheduled to arrive in the Port of Busan around this weekend, according to a South Korean military official.
 
The Michigan is capable of conducting underwater operations for more than three months, and is equipped with about 150 Tomahawk cruise missiles, making it capable of striking targets on land.

Next week, the U.S. nuclear-powered supercarrier, USS Ronald Reagan is also scheduled to arrive in South Korea, carrying some 70 aircraft, including F/A-18 fighter jets. The aircraft carrier is to be accompanied by Aegis destroyers and missile cruisers.
 
Another major U.S. aircraft carrier, the USS Theodore Roosevelt, has left San Diego for missions in the Indo-Pacific and Middle East that could potentially include the Korean Peninsula.

Some experts are viewing the massive show of force, including the unprecedented simultaneous deployment of two nuclear-powered submarines to the region, as a signal aimed at North Korea.