The success of the joint Polish-Ukrainian political campaign depended on the creation of a strong Ukrainian army capable of defeating the Soviets in Ukraine. While initially successful, the campaign ultimately failed. The local population was tired of hostilities after several years of war and the Ukrainian Army never exceeded two divisions largely due to the ambivalent attitude of Ukrainians towards the alliance. Petliura was only able to recruit 20,000–30,000 additional soldiers into his army, a number insufficient to hold back the Soviet forces.