Endless Waltz: Movie

Gundam Wing: Endless Waltz was first produced as a 3-part OVA and later compiled into a feature movie, which aired on Cartoon Network in late 2000.
Endless Waltz narrates the events of Christmas A.C. 196, one year after the Battle with Libra. A girl who claims to be the daughter of the late Treize Khushrenada, declares war on the newly formed Earth Unified Sphere Nation. Faced with this new threat against peace, the Gundam pilots must once again suit up.