He is a former soldier created by MAPPO to fight in the war between Africa and China for the control of the European continent. While in France he encountered Yvette who had seconds ago lost her brother, she decided to trow a flaming torch to his eye, this is the reason why he wears an eye patch.
After the end of the war with the help of the UN and Sahara, Trech is now reformed and serves as a Lieutenant for the LAPD