Betty Brandl

My uncle William Archer Martinez served in the Hq Co 3d Battalion 65th Infantry and his seperation date was 31 Jan 1946.  He received decorations for the American Theater Service Medal, European African Middle Eastern Theater, WWIIVictory Medal and was in the Rome-Arno, Rhineland, Central Europe battles.  I’m not sure, can anyone tell me if this was part of the Borinqueneers unit.  He has passed away  and although I have a copy of his DD214, I don’t really understand what a lot of it means.  Thanks