Buki yo Saraba
English title: A Farewell to Arms
Japanese title: 武器よさらば
Type: Movie
Episodes: 1
Source: Manga
Genres: Action, Drama, Sci-Fi
Studios: Sunrise
Duration: 25 min
Rating: R - 17+ (violence & profanity)

Based on a story by Otomo (Katsuhiro), it's about a ragtag group of hard-talkin', power suit-wearin' men tasked with disarming automatic tanks in a post-apocalyptic Tokyo.

(Source: Crunchyroll)