Aberdeen Proving Ground , headquaters

• Established in 1917: Aberdeen Proving Ground (APG) was created in 1917, during World War I, to provide a site for testing ordnance materiel, replacing the Sandy Hook Proving Ground in New Jersey. • Location: APG is located in Harford County, Maryland, northeast of Baltimore, and occupies more than 72,500 acres, making it one of the largest military installations in the United States. • Home of Army Research: APG houses several key military research and development organizations, including the U.S. Army Research Laboratory and the U.S. Army Test and Evaluation Command. • World War II Contributions: During World War II, APG was pivotal in testing and developing new weapons, including tanks, artillery, and small arms, ensuring U.S. forces were equipped with the latest technology. • Women in the Workforce: Thousands of women worked at APG during World War II, serving in roles from clerical work to engineering, helping to break gender barriers in the military workforce. • Headquarters Building: The iconic Building 310, constructed in the early 20th century, served as the main administrative headquarters and is a recognized landmark on the base. • Edgewood Chemical Biological Center: APG is home to the U.S. Army's premier chemical and biological defense research facility, the Edgewood Area, which played a significant role during the Cold War and continues to advance defense technologies. • Historic Testing Grounds: APG has tested everything from tanks and trucks to rifles and radars, and many military vehicles and weapons first saw action on its ranges. • Presidential Visits: APG has hosted several U.S. Presidents, including Franklin D. Roosevelt and Dwight D. Eisenhower, reflecting its national importance. • Environmental Stewardship: APG is also notable for its environmental conservation efforts, maintaining large areas of Chesapeake Bay wetlands and wildlife habitats while continuing its military mission.