China–North Korea relations
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The bilateral relations between the People's Republic of China (PRC) and the Democratic People's Republic of Korea (DPRK) have been generally friendly, although they have been somewhat strained in recent years because of North Korea's nuclear program. They have a close special relationship and China is often considered to be North Korea's closest ally. China and North Korea have a mutual aid and co-operation treaty, signed in 1961, which is currently the only defense treaty either country has with any nation.
Embassy of North Korea in China
Chinese volunteers crossing the Yalu River into North Korea during the Korean War
North Korea's prime minister Kim Il Sung and China's premier Zhou Enlai tour Beijing in 1958.
The close China-DPRK relationship is celebrated at the Mass Games in Pyongyang
Jang Song-thaek
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Jang Song-thaek was a North Korean politician. He was married to Kim Kyong-hui, the only daughter of North Korean premier Kim Il Sung and his first wife Kim Jong-suk, and only sister of North Korean general secretary Kim Jong Il. He was therefore the uncle of the current leader of North Korea, Kim Jong Un.
