Willow Grove Naval Air Station is a former military airfield located in Willow Grove, Pennsylvania. Established in 1929, it served as a base for various naval aviation operations and training. The station played a significant role during World War II and the Cold War, hosting several squadrons and support units. In 2011, the base was officially closed as part of a broader military restructuring. Today, the site is used for various civilian purposes, including commercial and recreational activities, while some areas remain under the jurisdiction of the Pennsylvania Air National Guard.