North Korea's political elite

North Korean leader Kim Jong-un (seated) discusses strike plan with North Korean officers during a meeting at the Supreme Command in an undisclosed location (image released by state media on 29 March 2013)

North Korea's new leader Kim Jong-un has inflamed tensions on the Korean peninsula with a torrent of bellicose threats against the US and South Korea.

In power since December 2011, the 30-year-old Mr Kim is an inexperienced and untested leader. His intentions are unclear, and some analysts question whether he is speaking out to strengthen his position or at the bidding of older, more experienced figures.

Not much is certain about who holds real power inside the secretive state. But here are some of the people who North Korea watchers consider to be closely involved in running the country. For a full profile of Kim Jong-un, click here.

Kim Kyong-hui and Chang Song-taek

Chang Song-taek  (L) and Kim Kyong-hui Chang Song-taek and Kim Kyong-hui are seen as Kim Jong-un's personal mentors

Kim Kyong-hui is the younger sister of Kim Jong-un's late father, Kim Jong-il. She and her husband, Chang Song-taek, have been central to North Korean politics for four decades and hold multiple titles in government. They are believed to be in their mid-60s.

When the inexperienced Kim Jong-un became the new leader in 2011, the couple were widely thought to be acting as his mentors.

The couple were pictured flanking Kim Jong-un recently when he vowed to keep nuclear weapons as "the nation's life treasure".

Analysts say creating an image as a military leader and consolidating his position as figurehead is partially behind the strident rhetoric.

Chang Song-taek was a trusted friend of Kim Jong-il's. He steadily rose through the ranks of the Korean Workers Party (KWP) after joining in the early 1970s and was elected to the Central Committee in 1992.

But sometime in 2004, he suddenly disappeared from politics and was believed to have been arrested and sent for political "re-education".

Some observers said that despite his close relationship with Kim Jong-il, Mr Chang was considered to have become too influential with too large a personal support base and hence deemed a threat to the established order.

He emerged two years later to be seen regularly alongside Kim Jong-il, becoming more prominent after the leader's suspected stroke in 2008.

Mr Chang is considered an administrative official, but he is also a vice-president of the National Defence Commission, a member of the politburo.

In June 2010, South Korean news agency Yonhap described Mr Chang as "guardian of Kim Jong-un". North Korea watchers often consider him to be the real power behind the throne.

Mrs Kim is a former light industry minister and a member of the politburo and secretariat. She disappeared from public life at the same time as her husband, emerging in 2009.

But after that, she was regularly seen alongside her brother at official events and inspections. In 2010, she was named a four-star general.

During their period in the political wilderness, the couple's daughter died in France. Some reports said she killed herself after they refused to allow her to marry her boyfriend.

Hyon Yong-chol

File photo: Hyon Yong-chol Hyon Yong-chol replaces the previously influential Ri Yong-ho

Hyon Yong-chol was promoted to the post of vice-marshal in the North Korean People's Army on 17 July 2012, one of several people holding the post concurrently. KCNA news agency later confirmed his as the chief of the general staff of the Korean People's Army.

The previously little-known general rose to sudden prominence, replacing the powerful former army chief, Ri Yong-ho.

Analysts said at the time that the reshuffle appeared to be an attempt by Kim Jong-un to stamp his authority on the army - and the apparent purge of Mr Ri suggested he is not averse to employing well-worn North Korean tactics to ensure loyalty to the leadership.

Very little is known about Mr Hyon, but he is believed to have been a general since 2010 and is a member of the central committee of the Workers' Party of Korea. In a clear sign of his growing influence, he served on the committee for Kim Jong-il's funeral in December 2011.

Choe Ryong-hae

Vice Marshal and Vice Chairman of the Central Military Commission Choe Ryong-Hae (C) and now former Vice Marshal and the military's General Staff Chief Ri Yong Ho with Kim Jong-un (15 April 2012) Choe Ryong-hae (C) was made vice-marshal in April

Along with Mr Chang, Choe Ryong-hae is seen as the chief image-maker of Kim Jong-un as a military leader.

Mr Choe has for a long time been known to be close to the Kim family. An economics graduate, Mr Choe became a four-star general in September 2010.

In April 2012, at the major Workers' Party conference which followed Kim Jong-un's appointment, Mr Choe was suddenly made a vice-marshal despite having no military background - an unprecedented move in North Korea.

He was also given a raft of other titles, including director of the Korean People's Army's politburo and vice-chairman of the Workers' Party's Central Military Commission.

He is something of a toy soldier, says North Korean analyst Aidan Foster-Carter, seldom, if ever, spotted in military uniform but with a high-ranking military role. He was trusted by Kim Jong-il - he was the person to whom Mr Kim turned to when he wanted a funfair to be rebuilt, for example.

There is speculation that Mr Choe's rapid rise could be behind the fall from grace of the top army official Ri Yong-ho, and that the pair may have fallen out.

Choe Yong-rim

Choe Yong-rim (file photo) Choe Yong-rim was a confidant of Kim Jong-il

Choe Yong-rim is an elder statesman figure in North Korea. He was described by Yonhap as being a "long-time confidant of the late leader Kim Il-sung", and he appears to have remained in favour with both his successors.

He served twice as vice-premier under Kim Il-sung, and then in June 2010, he replaced Kim Jong-il as premier.

North Korean leaders have traditionally placed great importance on visiting and being photographed at factories, farms and industrial plants. In recent months, Mr Choe has regularly been seen on such visits, a sign of the trust placed in him and his level of influence.

Kim Yong-nam

Kim Jong-un looks at the Kim Yong-nam (R) during a military parade (April 2012) Kim Yong-nam is the de facto head of state

Kim Yong-nam is the chairman of the presidium of the Supreme People's Assembly - the highest political machine in the country - and is in effect the head of state, although the position does not in practice exist in North Korea.

The 85-year-old is technically responsible for foreign relations, and has been on several foreign trips, including to the Beijing Olympics in 2008.

North Korea analyst Aidan Foster-Carter says those tours show he has some influence and is clearly listened to by the regime, but he is more a survivor than a key holder of power.

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