Shin Kidou Senki Gundam Wing

After years of relentless conflict, the Gundam pilots succeeded in establishing peace between Earth and its colonies by aiding in the defeat of the Oz and White Fang forces. From the remnants of war, the surviving warriors are now reuniting, forming new alliances. Heero Yuy has transformed into a vigilant pacifist, hunting down hidden weapon caches and eliminating them, while Relena, the erstwhile Queen of the Earth Sphere, strives to uphold the peace through political means. However, an unmanned weapons facility has been uncovered near Mars, compelling the Gundam pilots to once again ready their mechs for one final confrontation to preserve the fragile peace.