Oct. 26 (UPI) -- The USS Ronald Reagan left the South Korean port of Busan on Thursday, after staying docked for five days, following the conclusion of joint exercises around the peninsula.
The biggest U.S. warship based in Asia, commissioned in 2003, has been active in the region following North Korea's sixth nuclear test in September, Yonhap reported.
The U.S. Navy's youngest nuclear-powered aircraft carrier is permanently docked in Yokosuka, Japan, and includes a strike group led by Rear Adm. Marc Dalton.
This week the USS Ronald Reagan was seen with more than 80 aircraft on board, including the F/A-18 Super Hornet, EA-6B Prowler and E-2C Hawkeye.
The carrier does not come with long runways because it is equipped with arresting gear, a mechanical system used to quickly decelerate aircraft as it lands.
The Ronald Reagan's 5,000 crewmembers took part in joint U.S.-South Korea exercises last week in the East Sea -- also known as the Sea of Japan -- as well as in the Yellow Sea. The USS Chaffee, an Arleigh Burke-class destroyer in the Navy, and the USS Stethem, a guided-missile destroyer, also took part in the drills.
U.S. Forces Korea Commander Vincent Brooks visited the Ronald Reagan in Busan, along with Gen. Jeong Kyeong-doo, South Korea's chairman of the joint chiefs of staff, local newspaper Asia Business reported.
"The recent joint exercises showed the strong U.S.-[South Korea] combined defense posture," Jeong said during his visit to the Ronald Reagan on Tuesday.
A senior North Korean official recently warned a threat to test a nuclear bomb above ground should be taken "literally," CNN reported Wednesday.