Kidou Senshi Gundam: Akai Sankyosei
Synopsis
Universal Century, Decemeber 0079. After the failure to capture the Federation HQ at Jaburo, the remaining Zeon forces on Earth conduct a retreat. On their way back to space to reunite with the rest of Zeon's forces in space, a Federation unit consisting of three red giants appear. (Source: Kadokawa, translated)