The Siege of Firebase Gloria (1989)

The film's thin veneer of social propriety (the story of how the VietCong came under Hanoi's control) is merely a cover for a rolicking old-time battle tale, complete with a hard-tack sergeant, his rebellious sidekick, and a demoralized base that needs to be whipped into shape before the VietCong attack.

The Siege of Firebase Gloria is an action movie featuring Wings Hauser and directed by Brian Trenchard-Smith.

The Siege of Firebase Gloria is currently streaming for free (ad-supported) on The Roku Channel and Tubi TV and it's also available on Amazon Prime Video.

It is also possible to buy The Siege of Firebase Gloria on Vudu.