378th Fighter Squadron

Established on 1 March 1943 at Westover Field, Massachusetts as the 362d Fighter Group, equipped with Republic P-47 Thunderbolts. Deployed to the European Theater of Operations and assigned to Ninth Air Force in England. Engaged in combat operations until May 1945.^{[citation needed]}

Returned to the United States in August–September 1945, and assigned to First Air Force at Seymour Johnson Field, North Carolina, being programmed for deployment to Okinawa to take part in the planned Invasion of Japan. As a result of the Atomic bombings of Hiroshima and Nagasaki and the sudden end of the Pacific War, the deployment plans were canceled, however the unit was retained as part of the Second Air Force under Continental Air Forces and reassigned to Biggs Field, Texas, being equipped with North American P-51 Mustangs. Inactivated on 1 August due to postwar budget restrictions.^{[citation needed]}

In 2008, Air Force leadership recognized that the changing force structure demanded creative ways to generate experienced fighter pilots. The solution was to capitalize on the experience and assets of the Guard and Reserve. This Total Force Integration initiative became Active Association, whereby Regular Air Force personnel work side-by-side with host Air Reserve and Air National Guard Component units in a mutually beneficial relationship. Total Force Integration is a vital enterprise aimed at maximizing the combined contributions of the Active and Reserve components, while ensuring "right-sizing" of component mix. The 378th Fighter Squadron will continue to lead the Air Force's pilot absorption efforts and the partnerships will allow active-duty and Air National Guard fighter units to share resources, reduce duplications of effort, and ultimately, increase the Air Force's overall air defense capabilities in order to enhance the ability to provide dominant combat airpower for America.^{[citation needed]}

• Constituted as the 378th Fighter Squadron on 11 February 1943

Activated on 1 March 1943

Inactivated on 1 August 1946

Activated on 8 November 2015^[2]

• 362d Fighter Group, 1 March 1943 – 1 August 1946
• 495th Fighter Group, 8 November 2015^[2]

• Republic P-47D Thunderbolt, 1943–1945
• North American P-51H Mustang, 1945–1946
• F-15 Eagle, 2015–2023
• F-16 Fighting Falcon, 2015–Present
• F-35 Lightning II, 2022–Present

 This article incorporates public domain material from the Air Force Historical Research Agency

• Maurer, Maurer, ed. (1982) [1969]. Combat Squadrons of the Air Force, World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-405-12194-6. LCCN 70605402. OCLC 72556. Archived from the original (PDF) on 20 December 2016.
  • * Watkins, Robert (2008). Battle Colors. Vol. III Insignia and Markings of the Ninth Air Force In World War II. Atglen, PA: Schiffer Publishing Ltd. ISBN 978-0-7643-2938-8.