 Complete the following phrase:  From southern East Prussia, XIX Army Corps prepared to advance on Brest-Litovsk Polish: Brześć Litewski with the support of 10th Panzer Division from Army Group Norths reserves. They met the bitter resistance of some 700 to 1,000 Polish soldiers under leadership of Władysław Raginis, who managed to slow some 40,000 Germans down for three days at the 