 On 11 May, two MiG-21s, who played the role of "bait", brought four F-4s to 2 MiG-21s circling at low altitude.The MiGs quickly stormed the Phantoms and 3 missiles shot down two F-4s.On 13 May, a MiG-21 unit intercepted a group of F-4s, the second pair of MiGs made a missile attack and were hit by two F-4s.