The military can always argue that they moved to save the world from invasion by an alien horde.

I found it very positive about humanity as alien hordes threatened to destroy human cultures or humanity itself.

On completion, Enforcer was unleashed on the invading alien hordes.

Soon they meet their child selves, and the foursome set out to repel the alien hordes.

What if we gave away our location, so that some barbaric, bloodthirsty alien horde could come crashing in on us?

"At some point, you start looking like Rome, with an influx of alien hordes who never get on board."

Duke is forced to disobey the president's orders and fight his way through the alien hordes in an effort to save Earth.

The alien horde's excitement ebbed a little, but not their ferocious purpose.

Walking amid this alien horde made it easy for him to keep his voice low.

She knew she should have retrieved her rifle and pushed the angered alien hordes back.