Zone Troopers
American soldiers, led by The Sarge, are stuck behind Nazi enemy lines. As they make their way across the Italian countryside, they come across an alien spaceship that has crash-landed in the woods. The alien pilot is dead, but one of the ship's passengers is on the loose. As the GIs hunt down the alien by splitting into smaller groups, they're not only tracked by the Nazis, but also a whole host of other aliens come to save their stranded party.
Starring Tim Thomerson, Timothy Van Patten, Art LaFleur, Biff Manard, William Paulson, Peter Boom, Max Turilli, Eugene Brell, John Leamer, Bruce McGuire
Watch "Zone Troopers" from streaming services Amazon, MGM+ released in 1985. It's a science-fiction and war movie, and has a rating of 5.2 out of 10 from Imdb which is fairly okay for this kind of movie.