 Several countries deployed the type in combat during conflicts, including the Suez Crisis, the Malayan Emergency, and the Rhodesian Bush War.By the end of production, almost 3,300 Vampires had been manufactured, a quarter of these having been manufactured under licence in several other countries.In addition, de Havilland pursued the further development of the type; major derivatives produced include the DH.115, a dedicated dual-seat trainer, and the more advanced DH.112 Venom, a refined variant furnished with a swept wing (instead of the straight wing of the Vampire) and orientated towards conducting ground attack and night fighter operations.