 Complete the following phrase:  On 27 August the Leningrad Front began a full-scale counterattack against the XXXI Panzer Corps at Mga. ZG 27 fought with the 7 IAK and 5 IAP regiments in violent aerial clashes. Three Bf 110s were claimed by these fighter units, but German losses are unstated. On 29 August 35 IAP joined the battle and claimed two more Bf 110s. German losses are again unstated. II.ZG 26 supported I.KG 77 and elements of JG 54 and KGr 806 in 