G2:CI WESTCOM FT SHAFTER HI

• G2/CI Explained: The “G2” refers to the intelligence section at the division or higher level, while “CI” stands for Counterintelligence. Together, G2/CI is responsible for military intelligence and counterintelligence operations within the command. • WESTCOM Role: WESTCOM stands for United States Army Western Command, the predecessor to today’s U.S. Army Pacific (USARPAC). It was responsible for Army operations across the Pacific region. • Headquarters Location: The unit operated from Fort Shafter, Hawaii, which has been the headquarters for Army operations in the Pacific since 1921. • Cold War Operations: During the Cold War, G2/CI WESTCOM played a crucial role in monitoring Soviet, Chinese, and North Korean activities in the Pacific, assisting in the defense posture of U.S. forces in the region. • Major Exercises: The unit participated in major joint exercises such as RIMPAC and Cobra Gold, providing intelligence support and counterintelligence assessments to safeguard operations. • Counterespionage Activities: G2/CI WESTCOM was instrumental in counterespionage, investigating suspected attempts by foreign agents to infiltrate U.S. military installations in Hawaii and the broader Pacific. • Vietnam War Support: Analysts and CI agents from the unit supported operations and personnel rotations to Vietnam, helping to vet personnel and assess threats. • Signals Intelligence Collaboration: The unit worked closely with the Army Security Agency (ASA) and later the National Security Agency (NSA) to intercept and analyze communications from adversaries in the Pacific theater. • Transition to USARPAC: In 1990, WESTCOM was redesignated as U.S. Army Pacific (USARPAC), and G2/CI continued its vital intelligence mission under the new command structure. • Historic Building: The G2/CI staff operated out of some of Fort Shafter’s historic buildings, many of which date back to World War II and are now listed on the National Register of Historic Places.