North Korean leader Kim Jong Un inspects a military factory in this undated picture released by the Korean Central News Agency on Friday, May 17. North Korea launched several short-range guided missiles into the sea off the Korean Peninsula's east coast May 18, South Korea's semi-official news agency Yonhap cited the South Korean Defense Ministry as saying.
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(CNN) -- The North Korean military issued a fresh burst of ominous rhetoric Thursday, warning that U.S. bases in Guam and Japan are within its "striking range."
The statement from the Supreme Command of the Korean People's Army, carried by the North's state-run news agency, follows the announcement by the United States this week that its B-52 bombers were making flights over South Korea as part of annual military exercises.
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"The U.S. should not forget that the Andersen Air Force Base on Guam where the B-52s take off and naval bases in Japan proper and Okinawa where nuclear-powered submarines are launched are within the striking range of the DPRK's precision strike means," the North Korean military said Thursday.
Despite Pyongyang's rhetoric, no U.S. Navy submarines are based in Okinawa or anywhere else in Japan, although they may make calls at U.S. bases there. DPRK is short for Democratic People's Republic of Korea, North Korea's official name.
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Citing what it called the United States' "nuclear blackmail and threat," the North said it that it, too, would "take corresponding military actions."
Pyongyang had already reacted angrily to the B-52 flights, warning Wednesday of "strong military counteraction" if the planes made more sorties over the Korean Peninsula.
Angry words after new sanctions
Tensions have spiked in the region since North Korea carried out its latest underground nuclear test last month, the first under its new young leader Kim Jong Un, prompting the United Nations Security Council to respond by toughening sanctions on the secretive regime.
The sanctions enraged the North further, and during the week when the Security Council was voting on them, it ratcheted up its threats, suggesting it could carry out a pre-emptive nuclear strike on the United States and South Korea.
Although analysts and American officials say Pyongyang is still a long way from being able to carry out such an attack on the U.S. mainland, the United States' bases in Japan and Guam appear to be within range of the North's conventional weapons.
In its comments Thursday, "the Kim Jong Un regime is just firing back" at its enemies in response to the B-52 flights and the military exercises of which they're a part, said Lee Jung-hoon, a professor of international relations at Yonsei University in Seoul.
He said that the U.N. sanctions were also likely to be fueling the North's ire, but that the regime's threats were largely driven by domestic concerns.
"They're doing all this to prop up the regime," Lee said.
The military first strategy
Since Kim took over from his father as the head of the North Korean government in late 2011, he appears to have maintained the pursuit of a stronger military deterrent rather than adopting a more conciliatory approach to relations with South Korea and the United States.
The result has been a major foreign policy headache for U.S. President Barack Obama, with Kim showing more interest in dialogue with the basketball star Dennis Rodman than U.S. diplomats.
As well as the nuclear test, his government has conducted two long-range rocket launches -- one that failed and one that succeeded -- both of which were widely viewed as tests of ballistic missile technology.
Kim has also revamped the military's leadership, ousting some generals and promoting others.
The nuclear test and rocket launches have shattered hopes of any new talks on the North's nuclear program in the near future.
Indeed, Pyongyang has said recently that the program is not up for negotiation and announced that previous nonaggression treaties with Seoul no longer apply.
A new North Korea
The regime's unabashed declarations about its nuclear weapons, which it had been much cagier about in the past, show that "it's not the same North Korea as 10 years ago," Lee said.
The United States and other global powers need to "formulate a whole new strategy" to address the changed situation, according to Lee.
"The way we've been dealing with it for the past two decades has failed," he said of the regime. "It has become close to being able to deploy nuclear weapons."
Although U.S. officials say they don't believe North Korea is in a position to strike the United States at the moment, Defense Secretary Chuck Hagel last week announced plans to deploy additional ground-based missile interceptors on the West Coast as part of efforts to enhance the nation's ability to defend itself from attack.
"The reason that we are doing what we are doing, and the reason we are advancing our program here for homeland security, is to not take any chances, is to stay ahead of the threat and to assure any contingency," Hagel said at the time.
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Kim Jong Un visits the Ministry of People's Security on Wednesday, May 1, as part of the country's May Day celebrations.
A North Korea soldier gestures to stop photographers from taking photos from a Chinese tour boat as other soldiers look on along the North Korean bank of the Yalu River near the town of Sinuiji across the Chinese city of Dandong in Liaoning province, China, on Saturday, April 6.
North Korean soldiers gather by the docks in Sinuiju near the Chinese border on Thursday, April 4.
North Korean soldiers patrol along the Yalu River in Sinuiju across the border from the Chinese city of Dandong on April 4.
Kim Jong Un is briefed by his generals in this undated photo. On the wall is a map titled "Plan for the strategic forces to target mainland U.S."
Kim Jong Un works during a briefing in this undated photo.
North Korean leader Kim Jong Un inspects drills by the Korean People's Army navy at an undisclosed location on North Korea's east coast on March 25 in a photo from the state-run Korean Central News Agency.
Kim makes his way to an observation post with North Korean soldiers on March 25.
Kim uses a pair of binoculars to look south from the Jangjae Islet Defense Detachment near South Korea's Taeyonphyong Island on March 7.
Kim is greeted by the family of a soldier as he inspects Jangjae Islet Defense Detachment near South Korea's Taeyonphyong Island in South Hwanghae province on Thursday, March 7, in a photo from the state-run Korean Central News Agency.
Kim is surrounded by soldiers during a visit to the Mu Islet Hero Defense Detachment near South Korea's Taeyonphyong Island on March 7. North Korea has escalated its bellicose rhetoric, threatening nuclear strikes, just before the U.N. Security Council passed tougher sanctions against the secretive nation on March 7.
Kim arrives at Jangjae Islet by boat to meet with soldiers of the Jangjae Islet Defense Detachment near Taeyonphyong Island in South Hwanghae province on March 7.
Soldiers in the North Korean army train at an undisclosed location on March 6.
North Korean leader Kim Jong Un, center, poses with chiefs of branch social security stations in this undated picture released by North Korea's official news agency on November 27.
Kim celebrates with staff from the satellite control center in Pyongyang, North Korea, during the launch of a rocket carrying a satellite, in a photo released by the official North Korean news agency on December 12.
A crowd watches as statues of the nation's founder, Kim Il Sung, and his son Kim Jong Il are unveiled during a ceremony in Pyongyang on April 13, 2012. Photos from North Korea are rare, but the country was on full display in April 2012 as it celebrated the 100th birthday of Kim Il Sung.
A North Korean soldier stands guard in front of an UNHA III rocket at the Tangachai-ri Space Center on April 8, 2012.
In April 2012, Pyongyang launched a long-range rocket, which broke apart and fell into the sea. The UNHA III rocket is pictured on its launch pad in Tang Chung Ri, North Korea.
A closer look at the UNHA III rocket on its launch pad in Tang Chung Ri, North Korea.
A military vehicle participates in a parade in Pyongyang on April 15, 2012.
North Koreans wave flags in front of portraits of Kim Il Sung, left, and his son Kim Jong Il during celebrations to mark the 100th birth anniversary of Kim Il Sung in Pyongyang on April 16, 2012.
North Korean soldiers relax at the end of an official ceremony attended by leader Kim Jong Un at a stadium in Pyongyang on April 14, 2012.
Kim Jong Un applauds as he watches a military parade in Pyongyang on April 15, 2012.
A North Korean soldier stands on a balcony in Pyongyang on April 16, 2012.
North Korean soldiers march during a military parade in Pyongyang on April 15, 2012.
Soldiers board a bus outside a theater in Pyongyang on April 16, 2012.
North Korean performers sit below a screen showing images of leader Kim Jong Un in Pyongyang on April 16, 2012.
North Korean soldiers salute during a military parade in Pyongyang on April 15, 2012.
Kim Jong Un visits the Rungna People's Pleasure Ground, which is under construction in Pyongyang, in a photo released on July 3, 2012, by North Korea's official Korean Central News Agency.
North Korean soldiers listen to a speech during an official ceremony attended by leader Kim Jong Un at a stadium in Pyongyang on April 14, 2012.
Members of a North Korean military band gather following an official ceremony at the Kim Il Sung stadium in Pyongyang on April 14, 2012.
North Korean military personnel watch a performance in Pyongyang on April 16, 2012.
A North Korean controller is seen along the railway line between Pyongyang and North Pyongan province on April 8, 2012.
A North Korean military honor guard stands at attention at Pyongyang's airport during a diplomatic visit on May 2, 2001.
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