Hawker Siddeley much larger firms. Out of this decision, came the "order" that all future contracts being offered had to include agreements to merge companies. In 1959, Folland Aircraft was acquired, followed by de Havilland Aircraft Company and Blackburn Aircraft in 1960. In 1963, the names of the constituent companies were dropped, with products being rebranded as ""Hawker Siddeley"" or ""HS"". In this period, the company developed the first operational, and, by far, the most successful VTOL jet aircraft, the Harrier family. This aircraft remained in production into the 1990s and remains in service. In 1948, Hawker Siddeley acquired a factory in
Hawker Hunter the Indo-Pakistani War of 1965, the Indo-Pakistani War of 1971, the Rhodesian Bush War, the Second Congo War, the Six-Day War, the War of Attrition, the Yom Kippur War, and the 2007 Lebanon conflict. Overall, 1,972 Hunters were manufactured by Hawker Aircraft and its successor, Hawker Siddeley, as well as being produced under licence overseas. In British service, the Hunter was replaced in its principal roles by the Lightning, the Hawker Siddeley Harrier and the McDonnell Douglas F-4 Phantom II. During 1945, the Second World War came to a close and a new postwar Labour government, headed by Clement Attlee,