Family Guy (1999)

S5E4 Saving Private Brian

Chris receives an invitation to enlist in the military. Concerned, Brian heads to the recruiting office to share his thoughts, but Stewie takes the initiative and enlists both himself and Brian. They manage to get through Boot Camp and find themselves deployed to Iraq, where they attempt various antics to secure an honorable discharge. Meanwhile, Chris chooses to pursue his passion by joining a goth band.