The Grand Leader was in charge of the Green Army in 2042. He was a ruthless man, who had killed hundreds of innocent people in the war between the Global republic.
In 2042, the Green Army and the Global Republic had been engaging in small skirmishes, nothing major had occurred yet. After plotting with Claw, and British crime-lord called Doyle contacted the Grand Leader, blaming the Global Republic on the recent terrorist attacks in London. The Grand Leader made it clear he would destroy his enemies, leaving no survivors.