June 28 -- Invaders capture Seoul, southern capital.

July 5 -- First U.S. troops join battle, are driven back.

Aug. 4 -- South Korean and U.S. troops, organized as U.N. Command, withdraw into Pusan Perimeter defense line.

Sept. 15-22 -- U.S. troops come ashore far behind North Korean lines at Inchon. Pusan Perimeter forces push north to join them.

Sept. 27 -- U.N. forces recapture Seoul.

Oct. 19 -- U.N. forces capture Pyongyang, northern capital.

Oct. 25 -- Chinese army attacks U.N. Command in North Korea.

Nov. 7-Dec. 9 -- In east, U.S. Marines encircled at Chosin Reservoir fight way to sea and later evacuation. In west, U.S. Army's 2nd and 25th divisions are battered.

March 18 -- U.N. counter-offensive retakes Seoul.

July 10 -- Truce talks begin.

August-October -- Battles rage for limited front-line territory.

November -- Stalemate sets in along front.

Oct. 8 -- Talks deadlock, are recessed.

1953

March 30 -- Talks resume.

July 27 -- Korean armistice agreement signed, continuing the division of Korea.