80's movie with soldiers falling into sand holes with serpents

When Gummer is hired to capture a deadly creature terrorizing South Africa, he and his new sidekick, Travis Welker, engage in another battle of survival against the fiercely aggressive Graboids.

Survivalist Burt Gummer returns home to Perfection, to find that the little town has been shaken up again by morphing, man-eating Graboids.

In 1889, seventeen men die under mysterious circumstances, and spooked by recent events, the miners who populate the town leave in droves until there's nothing left but a shell of a community.

Earl Bassett's celebrity after defeating the Graboid attack against the town of Perfection has proved short-lived, until he's recruited by a Mexican oil company whose workers have found more than they bargained for under the soil.

Jason Gedrick and a small group of Marines are stranded in the remote Afghan desert. But it ain't the Taliban that's worrying them, it's these giant refugees from Tremors. In fact the big worms prove to be an ally of sorts by doing better against the Taliban than themselves but battling these enemies is something not covered in their training.

A small British army team is sent deep behind enemy lines to destroy a German petrol dump as part of the preparation for a major attack in the North African campaign. Sea of Sand was distributed in the US in a shortened version, Desert Patrol.

When a village is bombed, and its young survivors find shelter at their nearby beach, things go wrong when the survivors split into two clans, and begin a war.

A group of U.S. soldiers on a mission in the Middle East find themselves with nothing to do in their free time. Out of sheer boredom they end up destroying an old statue in the desert, only to unleash a horrific entity.

The French Foreign Legion battles rebellious Arabs in North Africa.

A zoologist is called to a construction site that has been plagued by snakes. He finds out that the place once was the ancient headquarters of a snake-worshiping cult and that the same cult placed a curse on the grounds. Soon the zoologist and the workers find themselves under attack by hundreds of deadly snakes.