In the aftermath of the wars with Japan and Poland several senior Soviet Commanders called for a unified military doctrine. The most prominent was Mikhail Frunze. The call prompted opposition by Leon Trotsky. Frunze' position eventually found favour with the officer elements that had experienced the poor command and control of Soviet forces in the conflict with Poland during the Polish-Soviet War. This turn of events prompted Trotsky's replacement by Frunze in January 1925.