Camp Sears was a United States Army base located less than two miles outside the city of Uijongbu, approximately 20 miles (32 km) north of Seoul. The 32-acre (130,000 m2) installation housed military personnel assigned to the Headquarters Battery of 5-5 ADA composed mostly of combat support troops. The installation was home to a single combat arms platoon of air defense scouts known as EWSO, which provided early warning air defense for the 2nd Infantry Division.