Sentence:  When the Korean war began , on June 25 , 1950 , the anniversary of the day Custer had gone down fighting at the Little Big Horn and the day the regiment had assaulted the beachhead of <WSD>Leyte</WSD> during World War 2 , , the 7 th Cavalry was not in the best fighting condition . 
Meaning of the word marked with <WSD> tags:  a battle in World War II; the return of United States troops to the Philippines began with landings on Leyte Island in October 1944; the battle marked first use of kamikaze aircraft by the Japanese