If you loved Mobile Suit Gundam III: Encounters in Space, try Mobile Suit Gundam II: Soldiers of Sorrow
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.

Mobile Suit Gundam III: Encounters in Space

Mobile Suit Gundam II: Soldiers of Sorrow
What they share
Both films are directed by Osamu Sekita, Yoshikazu Yasuhiko, Yoshiyuki Tomino, and they both carry the bittersweet, foreign gem mood tags, and they sit in Action / Animation / Science Fiction territory. If that's the register that drew you to Mobile Suit Gundam III: Encounters in Space, the second film will land in a comparable space — through a different lens.
What Mobile Suit Gundam II: Soldiers of Sorrow is
You fight for the Earth Federation, piloting a mobile suit against the Zeon threat. But your vessel, the White Base, is hounded across continents and seas. Tomino's middle act runs leaner, meaner; it suggests a war where growing up fast is the only survival.