June 25 - North Korean forces cross the thrity-eighth parallel. The United
Nations, in absence of U.S.S.R adopts a resolution calling for the North
Korean forces to the parallel
June 27 - President Truman orders air and sea services to help South
Korean forces.
June 29 - North Korean Army captures Seoul
June 30 - Truman orders U.S ground troops to Korean and naval blockade of
Korean of Korean coast. Authorization of U.S Air force to proceed in boming
North Korea
July 1 - First U.S combat troops arrive on Korea
July 4 - U.S troops meet North Korean Army in Osan but forced to retreat
July 7 - Douglas MacArthur named Supreme U.N commander
July 15 - North Korean Army cross Kum River
July 21 - U.S troops fight out of burning Taejon
August 1 - Second U.S infantry division reaches Korea
August 8 - North Korean Army breach Naktong River perimeter line
August 15 -U.N troops repel two attacks along Naktong
September 3 -North Korean Army offensive threatens Taeju
September 15 - U.S X Corps makes a successful assault on Inchon, enabling
them to break through the Pusan perimeter and push toward the 38th-parallel
September 26 - Southern units retake Seoul
October 1 - South Korean troops cross 38th parallel
October 8 - Mao Tse Tung secretly orders Chinese "volunteers"
into Korea
October 18 - Southern units occupy Hamnung and Hungnam
October 19 - Eighth Army seizes Pyongyang
October 25 - Chinese forces fight with ROK troops less than 40 miles south
of the Yalu River
October 27 - Eighth Army halted by Chinese forces
October 29 - X Corps haled by Chinese forces in northeast
November 3 - U.S 25th Division driven back from Yalu River
November 6 - MacArthur charges Chinese with unlawful aggression
November 8 -Air battle over Sinuiji
November 12 - U.S Army 3rd Division arrives in Korea
November 16 -Truman reassures China and other nations that he has never
had any intention of creating hostilities toward China
November 26 -Chinese counterattack
November 27 -Eighth Army halted by Chinese forces
December 1 - Eighth Army and X Corps withdrawing in face of Chinese
offensive
March 30 - Communist agree and propose that prisoners unwilling to be
repatriated to be transferred to a neutral state
April 26 - Armistice negotiations resume
May 28 - The U.S and U.N negotiating team presents its final terms and
threatens to break off the talks if these are rejected. Northern forces
attack outpose of U.S 25th Division
June 8 - POW issue settled on the principle of voluntary repatriation
June 15-30 - Northern forces attack U.S I Corps
June 17 - Revised demarcation line settled President Rhee orders South
Korean guards to release North Korean prisoners in Pusan camps.