Aberdeen Proving Ground is an army base in Maryland was established as a proving ground in October 20, 1917, soon after the US entered World War 1. It was one of the first proving grounds for the US Army. From World War One to World War Two, Aberdeen Proving Ground proved to be a very important for training soldiers to be ready for what they would face when abroad. Located on just over 70,000 acres of land, the army installation exists on two peninsulas that are separated by the Bush River.
In 2005, the government signed an Enhanced use lease (EUL) partnership with Opus East LLC, which continues today. It basically means that the company can develop underutilized lands, with some of the proceeds going to maintenance of the military installation. Several projects have already been completed. The army base was in the limelight in the late 1990s when 12 male officers were accused of physically assaulting female trainees under their command. That aside, Aberdeen Proving Ground remains an important part of the US Army where officers are trained to uphold the mission of the US Military.