The combine is a bunch of bureaucratic bitches who like taking stuff. In half-life 2, they attack earth in a war that only took 7 hours. the combine like to also mix humans with robots to make the OTA. On top of that, they have aliens who they also mix with technology and they are called synths.

Farming Vehicles that have taken over the earth in 7 hours.

The Combine is a multidimensional empire which serves as the primary antagonistic force in the video game Half-Life 2, developed by Valve Corporation. The Combine consist of alien, synthetic, and human elements, and dominate Earth. The Combine is a multidimensional empire which serves as the primary antagonistic force in the video game Half-Life 2, developed by Valve Corporation. The Combine consist of alien, synthetic, and human elements, and dominate Earth.