The unmistakable howl of the AV-8B Harrier II has been a soundtrack to U.S. Marine Corps aviation for more than four decades. From the deserts of the Middle East and Afghanistan to the decks of amphibious assault ships at sea, the aircraft’s ability to take off from short runways, operate from austere forward bases, and land vertically made it one of the most distinctive combat aircraft ever to wear American markings. Before then, its predecessor, the first-generation AV-8A Harrier, had pioneered the ‘jump jet’ in U.S. service, after entering Marine Corps service in 1971. Now, that illustrious era has come to an end.