Original sentence: Another factor are economic interests: Chechnya possesses large oil reserves, and the Russians are concerned that prolonged instability may lead to third parties entering the region in order to seek to control the oil, causing further instability and war.Most notably the forced relocation, in the 1940s, of the entire population to Siberia, resulting in the estimated death of a quater of the population.Principally, Russia's stake in Chechnya relates to the fear that if Chechnya becomes independent, even more territories will break away from Russia, leading to its disintegration.The motivations of the Russian and Chechens in these conflicts are complicated
Edited sentence: Another factor are economic interests: Chechnya possesses large oil reserves, and the Russian Government ( just like  the American Government in Irak) is concerned that prolonged instability may lead to third parties entering the region in order to seek to control the oil, causing further instability and war.First of all, Chechnya's basic utopic idea of creating a wide-spread muslim Chechnya, that would cover the territory from the Black Sea up to the Caspian Sea.Most notably the forced relocation, in the 1940s, of the entire population to Kazakh SSR, resulting in the estimated death of a quater of the population.Russia's stake in Chechnya relates to the fear that if Chechnya becomes independent, even more territories will break away from Russia, leading to its disintegration.Second of all, the lack of education and poor economical situatuion plus an extraordinary and anti-humanistic way of handling difficult situations (robbing, killing people, cutting heads off) made generations of Chechenyans turn into killing machines, that don't understand ( due to their religion, history and traditions) the treasure of life.The motivations of the Chechens and Russian in these conflicts are complicated