The 363rd Intelligence, Surveillance, and Reconnaissance Group is a United States Air Force unit stationed at Joint Base Langley-Eustis. It is assigned to the 363rd Intelligence, Surveillance and Reconnaissance Wing. It was activated in February 2015, after having been returned to regular service after operating as a provisional unit. The group has its origins in the 363rd Fighter Group, activated on 1 August 1943 at Hamilton Field, California. The unit was credited with 41 victories but lost 43 of its own aircraft during World War II.