"Warriors of Space") is a six-part anime OVA produced by Sunrise and Bandai, and released in 1988.
Johnny Rico, who was a very ordinary high school student, hears that his longing classmate Carmencita will join the army upon graduation, and he himself also decides to apply.
Rico learns from his best friend Carl that the Earth Federation is at war with an unknown alien life form, but his determination only grows stronger.
On his way home after a fierce battle, Rico reunites with Carmencita, who was thought to have died in action, at a military hospital.
[1] A mecha based on this design also appears on the DAICON III and IV Opening Animations from 1981 and 1983, a few years before the OVA was released.