dispatcher in Half-Life 2 and its episodic expansions and their virtual reality prequel Half-Life: Alyx. Combine soldiers in Half-Life: Alyx are voiced by multiple actors including Rich Sommer, Isaac C. Singleton Jr., Jason Vande Brake, Michael Schwalbe, Rajia Baroudi, and Rick Zieff. Attributes Society Little is revealed of the Combine's role outside of Earth, but dialogue in Half-Life 2 states that they control worlds of various dimensions and inhabited by a range of species. The Combine occupation of Earth, however, is shown to be a brutal police state. In City 17, an Eastern European city, Civil Protection units are seen frequently, often conducting random searches of apartment blocks, interrogating human citizens and performing random acts of police brutality. The military Overwatch forces of the Combine are shown attacking human resistance bases in an effort to further solidify peace in the urban centers. Citizens themselves are all clad in blue uniforms and live in designated apartment blocks. Citizens move around to different cities or locales at the Combine's will using passenger trains. Vortigaunts, enemy alien creatures from the original Half-Life, are revealed to have also been enslaved, and are observed in various jobs such as janitors. According to the coffee table book Half-Life 2: Raising the Bar, the Combine are draining the Earth's oceans and resources to be used on other Combine worlds; while in both City 17's waterways and the outskirt's coastal shores, water levels are severely reduced. The heart of the Combine's command over Earth in Half-Life 2 is the Citadel, an enormous structure of Combine construction reaching tens of thousands of feet into the sky and delving deep underground. Located within City 17, the Citadel serves as the primary headquarters of the Combine, housing Combine Advisors and the office of Earth's administrator, Dr. Wallace Breen. Breen, a puppet ruler, is frequently seen on large screens around the city from which he spreads propaganda and various announcements. The Citadel projects an energy field that is able to prevent human reproduction, as well as a field that keeps dangerous alien fauna out of the city. In addition, the Citadel contains a trans-dimensional teleporter which allows the Combine to travel between their native universe and Earth. The Citadel also contains construction facilities for various synthetic Combine combat machines. Depiction The Combine is composed of various species and machines. The most commonly encountered enemies throughout Half-Life 2 and its expansions are the