SEOUL (Yonhap) -- The following is a chronological review of major developments related to North Korea from May 20-26.
20 The (North) Korean Central News Agency (KCNA) says North Korean leader Kim Jong-il gave field guidance to workers at the Orangchon Power Station, currently under construction, and the Chongjin Rabbit Breeding Stock Farm in North Hamgyong Province.
20 The KCNA says Kim Jong-il gave field guidance at the Kwanmobong Machine-building Plant, which put its production processes on a CNC basis.
20 A spokesman for the National Defense Commission (NDC) issues a statement regarding the sinking of the South Korean warship Cheonan.
20 A delegation of the Kimilsung Socialist Youth League headed by Ri Yong-chol, first-secretary of its Central Committee, leaves Pyongyang to visit Iran.
21 The KCNA says Kim Jong-il gave field guidance at the Ryongsong Machine Complex in Hamhung City in South Hamgyong Province.
21 The KCNA says Kim Jong-il inspected a unit of the (North) Korean People's Army (KPA).
21 The KCNA says Kim Jong-il provided field guidance at the Hamhung University of Chemical Industry in South Hamgyong Province.
21 A spokesman for the Committee for the Peaceful Reunification of (North) Korea issues a statement assailing the South Korean government for releasing the results of the investigation into the sinking of the warship Cheonan.
21 The North celebrates the birthday of Buddha at temples in different parts of the Democratic People's Republic of (North) Korea (DPRK).
21 A spokesman for the Foreign Ministry issues a statement denouncing the U.S. for accusing the DPRK of sinking a South Korean warship and disturbing the international peace and security.
21 The Presidium of the SPA sends a message of greetings to the 22nd Congress of the General Association of Korean Residents in Japan (Chongryon).
21 Kim Yong-nam sends a message of greetings to Ali Abullah Saleh, president of Yemen, on the occasion of its 20th national day.
22 Jo In-chol is appointed as ambassador to Iran, according to a decree of the Presidium of Supreme People's Assembly.
22-23 The 22nd congress of the General Association of Korean Residents in Japan (Chongryon) is held at the Korean Cultural House in Tokyo from May 22 to 23.
23 The DPRK defeats Myanmar 2:0 in a match at the AFC Women's Asian Cup 2010.
23 Talks between the Delegation of the Kimilsung Socialist Youth League of the DPRK and the National Youth Organization of Iran take place in Teheran.
23 Kim Yong-nam sends a messages of greetings to Issaias Afewerki, president of Eritrea, on the occasion of its independence day.
24 A NDC spokesman rebukes South Korean President Lee Myong-bak's statement as "farce aimed at covering up the true nature of the conspiratorial farce and charade orchestrated by himself," calling Lee a "traitor."
24 A spokesman for the Foreign Ministry says that the DPRK has the legitimate right to reinforce its nuclear deterrent to protect the supreme interests of the country, claiming it is not bound to any duty under the Nuclear Nonproliferation Treaty (NPT).
24 Kim Yong-nam sends a message of condolences to President of India Pratibha Devisingh Patil in response to the recent passenger plane crash in Mangalore, India that had a high death toll.
24 Kim Yong-nam sends a congratulatory message to Jean Ping, chairman of the Committee of the African Union, on the occasion of Africa Day (May 21).
24 Kim Yong-nam sends a message of greetings to Abdullah, king of the Hashemite Kingdom of Jordan, on the occasion of the 64th anniversary of its independence.
24 Johannes Plug, a Social-Democratic Party member in the German Bundestag, and his party arrive in Pyongyang.
24 The KCNA says a new pamphlet has been issued in the DPRK to mark the 21st Winter Olympics held in Canada in February.
25 The Committee for the Peaceful Reunification of (North) Korea issues a statement, saying that the DPRK will sever all relations with South Korea and won't engage in any inter-Korean dialogue or contact during the remaining tenure of President Lee Myung-bak.
25 A reception hosted by Charge d'Affaires a.i. Vihren Nikolov of the Bulgarian embassy in Pyongyang is held at the Taedong River Diplomatic Corps Club in Pyongyang to mark the Day of Slavic Alphabet and Bulgarian Culture.
25 A photo exhibition and a film show takes place at the Taedongmun Cinema House to commemorate the 120th anniversary of the birth of former Vietnamese leader Ho Chi Minh.
25 A delegation of the Lao People's Revolutionary Party led by Boun Thong Chitmani, member of the Secretariat of its central committee and chairman of its organization commission, arrives in Pyongyang.
26 Delegations of the Workers' Party of (North) Korea and the Lao People's Revolutionary Party hold talks in Pyongyang.
26 The KCNA says that the head of the North side delegation in the North-South general-level military talks sent the following notice to the South regarding its military move to resume psychological warfare against the DPRK.