Doraemon: Nobita and the Platoon of Iron Men is an anime film that premiered in winter 1986.

About the production: the story comes from a manga, the film runs about 97 minutes and its current status is "finished".

Its main genres are adventure, comedy and fantasy, with themes such as Kids, Super Robot, Primarily Child Cast and Male Protagonist.

On AniList, Doraemon: Nobita and the Platoon of Iron Men has an average score of 73%, a good score, and appears on 2,975 users' lists.

Giant robot parts fell from the sky, so Nobita and Doraemon took it into the mirror world to build it and called it the Zandacross. It seems that Zandacross is a dangerous weapon so they kept it a secret. A mysterious girl named Lilulu appeared and asked for Zandacross for the invasion but she doesn't agree to invade the Earth. Doraemon and the others join forces to stop the invasion of the robot army but it seems that Lilulu is the only one that can stop it. (Source: Anime News Network)

Official synopsis from AniList.