 On the outbreak of the Korean War , Kouma commanded an M26 Pershing tank in the 2nd Infantry Division . While fighting during the Battle of Pusan Perimeter along the Naktong River , Kouma commanded his tank as it single @-@ handedly fended off repeated North Korean attempts to cross the river after units around it had withdrawn . Wounded twice , Kouma killed 250 North Korean troops in this action . 
