 Complete the following phrase:  The Russians attacked a wide front with three armies. Kościuszko proposed that the entire Polish army be concentrated and engage one of the Russian armies, to assure numerical parity and boost the morale of the mostly inexperienced Polish forces with a quick victory; but Poniatowski rejected this plan. On 22 May 1792, the Russian forces crossed the border in Ukraine, where Kościuszko and Poniatowski were stationed. The Crown Army was judged too weak to oppose the four enemy columns advancing into West Ukraine, and began a fighting withdrawal to the western side of the Southern Bug River, with Kościuszko commanding the rear guard. On 18 June, Poniatowski won the 