Poland, Ukraine, and Lenin?

It was a war between independent Poland and Soviet Russia that was attempted to retake a territory that was before WWI a part of Russian Empire. In WWI, the German troops d deeply into Ukraine as far as Charkov, which enabled a collapse of the Tsarist power there and also pretty escape the first outbreaks of the Bolshevik war. But Ukraine became a battleground between the pro-communist forces and pro-independence especially in the central and western Ukraine. Lenin did not want to fight German occupation force and believed that Germany would join the socialist cause, but when Poland was created, it changed the Bolsheviks' hope of the situation in Central and Eastern Europe. Independent Poland would be opposing the Bolsheviks and was threat to them. Also Russia considered Warsaw and central Poland as part of their territory and they were determined to take back. With the move toward the west, they overrun weak Ukraine Republican forces and approached Warsaw. Only strong determination of Poland and its mive support from France saved it from a disaster. While the Poland won the battles within its territory, it was not only the war they were facing. At the same time, it was in a war with Czechoslovakia over Tesin and Slovakia, and Czech forces won victory and was not only able to keep the Zaolsie and Slovakia, but also invaded Poland itself in 1920. So Poland while victorious on the east was losing on the west and rather agreed to not pursue two conflicts at the same time. Still, Poland was able to acquire large territory of the western Ukraine, where proindepence forces were strongest. Ukraine was left split and the central and eastern part quickly pacified and submitted to Bolshevik. Lenin supported the war against Poland as it was standing in way of spreading communism from the East to the Western Europe. Any case, Poland gained the most, having not only Polish inhabited areas, but also large part of Belarus and Latvia was included in the new Polish Republic.