The USS Michigan - a guided-missile submarine - arrived in South Korea for what a US defense official described as a show of force amid tensions between the US and North Korea.
The USS Michigan (pictured), a nuclear-powered submarine, arrived at the South Korean port of Busan in what was described as a routine visit to rest the crew and load supplies. Cmdr Jang Wook from South Korean navy public affairs said there was no plan for a drill
[h=3]USS MICHIGAN: ONE OF THE LARGEST SUBS IN THE WORLD[/h]The USS Michigan is the second Ohio-class nuclear-powered guided missile submarine in the US Navy.
The Michigan has a displacement of more than 18,000 tons when submerged and 16,000 tons when surfaced.
It is one of the largest submarines in the world and can travel at speeds of 29 miles per hour and can stay submerged for up to three months.
The submarine is equipped with about 150 Tomahawk missiles that hit targets that are up to 990 miles away, and can carry out a range of missions including anti-submarine warfare and reconnaissance.
The USS Michigan was last deployed to the peninsula in June 2015.
It also boasts 24 missile tubes, four 21-inch torpedo tubes and an S8G Nuclear Reactor. Source: Naval Technology
US Army's M1 A2 tanks fired during a joint military live-fire drills with South Korea at Seungjin Fire Training Field in Pocheon, South Korea, near the border with North Korea
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Flames rose as South Korean army's armored vehicles waited during their own drill on Wednesday
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South Korean army's multiple launch rocket systems fired several rockets
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In a defiant bit of timing, South Korea have announced that key parts of a contentious US missile defense system have been installed
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South Korean acting President Hwang Kyo-ahn (pictured centre, front) inspected a variety of fire arms during the firing drill
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A US Army Apache helicopter fired rockets during the joint military live-fire drills
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The US and South Korea's armored vehicles move through the Seungjin Fire Training Field