Combine Soldiers are the standard transhuman infantry units of the Combine Overwatch, composing the backbone of the Combine's military presence on Earth. In contrast to Civil Protection, whose duties are to enforce order within suppressed urban centers, soldiers of the Overwatch are tasked with more hazardous actions requiring skill and tact: from patrolling the treacherous borders of Combine-controlled territory to raiding Resistance-held strongholds.