Because of the relative proximity of Italy to Spain, deliveries of war matériel had a much greater impact on immediate operations than those received by Republican Spain from the Soviet Union. According to the official Italian military history of the Spanish Civil War, the timeliness of deliveries was often more crucial than their scale given that one side or the other might have had to give in or seek a compromise peace if necessary supplies had not been received in time.112 The fact that the Italian air force could protect the Italian merchant ships carrying supplies ensured a rapid and virtually uninterrupted supply. Nearly 80,000 Italians fought in Spain of whom nearly 4,000 were killed. The Italians supplied 759 aircraft, 6,600 cannons, mortars and machine guns, 157 tanks, 7,400 motor vehicles, 1.8 million uniforms, hundreds of thousands of rifles and 7.7 million shells,
and 319 million small-arms cartridges. This was costed at 8,500,000,000 lire (£95,000,000 in 1939 terms; £2,375,000,000 in 1995 terms), although the generous payment deal was of 5,000,000,000 lire.113 By November 1937, the scale of the economic strain was causing Mussolini considerable anxiety.