Two US Marines died west of Baghdad - one in fighting and the other in a non-combat incident, the military said Thursday. One Marine assigned to Multi National Force - West was killed Tuesday while conducting combat operations in Anbar province, which stretches from the capital to the borders with Jordan, Syria and Saudi Arabia, according to a statement. Another Marine with the division died the same day in a non-combat incident, the military said separately. It said the incident was under investigation. Names of the deceased were not released pending notification of relatives.