 Complete the following phrase:  In early July, the brigade was transferred north to the Kiev area with the rest of the corps. On 15 July, it concentrated into the Dudarkovo area, organizing a circular anti-tank and anti-aircraft defense, tasked with air surveillance of the area around the Gogolev and Borispol airfields in order to prevent a German airborne attack. From early August, the brigade fought with the corps in the 