The Promethean balance - Masamune Shirow

Paradise ain't easy! In the future utopian metropolis of Olympus, a blazing beacon of humanity amidst a post-global-war wasteland, ESWAT agents Deunan and Briareos have fought tooth and nail to keep the peace and prevent Olympus from sliding back into chaos. When Olympus intelligence learns of a giant Landmate powersuit being built in secrecy, and on the threshhold of a top-secret international conference of the highest importance to be held in Olympus, ESWAT is mobilized to crack the mystery and disrupt a terrorist operation that could turn the fragile peace into World War IV!