offensive formation for the new air force; on 15 February 1917, they flew an offensive patrol of seven. By this time, the AMB had grown to 44 aircraft, including 21 fighters. At this point, individual aircraft bore personal markings affixed by their pilots, but no unit designations. In the summer of 1917, the AMB was allotted an active role in Allied aviation operations at the beginning of the Third Battle of Ypres. In March 1918, the AMB matured into a . At this time, the role of the was finally focused on their operation strictly as fighter units. There was a sorting out of pilots into fighter or reconnaissance roles. Not all fighter pilots went into the new fighter units; as of 1 May, 22 remained with reconnaissance units to fly escort missions. The King insisted that Jacquet be given the command of the Group. The newly organized fighter wing contained the two fighter escadrilles; however, became , and became . The was founded on 28 May to join them. By the start of the Allies final offensive in September 1918, the AMB was incorporated in the Allied aviation effort, and could send 40-plus aircraft into the air at one time. In its short span of service, the Groupe fought over 700 aerial combats and was credited with 71 confirmed and 50 probable victories. Aircraft procurement difficulties In June 1916 the nascent air force had received newer aircraft from the French in both single and double-seat versions of the Nieuport 10. The Belgians would continue to upgrade their aircraft throughout the war, though through their dependence on French manufacturers they became the stepchildren of the Allied effort from 1916 onwards. The introduction dates of various types, compared to the date of their acquisition by the Belgians, tells the tale. The Belgians got Nieuport 16s at the end of 1916. The Nieuport 17 came into service with the French as early as June 1916, but the Belgians received so few that in June 1917 they were still operating all their earlier Nieuports. They then contracted for newer Nieuport 23s, which were basically up-engined Nieuport 17s. Spad VIIs had entered French service on 2 September 1916; the Belgians first received them almost an entire year later, with the first one on board on 22 August 1917. In September 1917, Belgium had the Hanriot HD.1 supplied to it the year after it was