Russian efforts to impose its system aroused the resentment by the Kazakh people, and, by the 1860s, some Kazakhs resisted Russia's rule. It had disrupted the traditional nomadic lifestyle and livestock-based economy, and people were suffering from hunger and starvation, with some Kazakh tribes being decimated. The Kazakh national movement, which began in the late 19th century, sought to preserve the native language and identity by resisting the attempts of the Russian Empire to assimilate and stifle them.