Gundam Wing: The Endless Waltz.

After Colony (A.C.) 196, one year following the end of the battles between the Earth Sphere and the space colonies, peace has spread throughout. The Gundam pilots find themselves attempting to rebuild their lives. No longer having need of their weapons of war, their Gundams are sent into the sun to be destroyed. But suddenly, Relena Darlian, now a high-ranking government official, is kidnapped by a colony with aspirations of total dominance. The pilots and their allies find themselves called into action once again. The Endless Waltz has resumed...