1st Neopian War- 18 yrs ago...

So this is one of the many battles the soldiers of the UNAF Spirit of Hope: [link] but is one of the most significant, which takes over 3 years just for the neopian forces to win, its called the Battle of Arcana prime, which takes place around 18 years before the main events, which explains the title.

P.S. Most of the designs are attributed to Halo, but with a different storyline