As early as late 1919 the leader of Russia's new Bolshevik government, Vladimir Lenin, inspired by the Red Army's civil-war victories over White Russian anti-communist forces and their Western allies, began to see the future of the revolution with greater optimism. The Bolsheviks proclaimed the need for the dictatorship of the proletariat, and agitated for a worldwide Communist community. They had an avowed intent to link the revolution in Russia with an expected revolution in Germany and to assist other Communist movements in Western Europe; Poland was the geographical bridge that the Red Army would have to cross to provide direct physical support in the West.Lenin aimed to regain control of the territories abandoned by Russia in the Brest-Litovsk Treaty of March 1918, to infiltrate the borderlands, to set up Soviet governments there as well as in Poland, and to reach Germany - where he expected a Socialist revolution to break out. He believed that Soviet Russia could not survive without the support of a socialist Germany. By the end of the summer of 1919 the Soviets had taken over most of Ukraine, driving the Ukrainian Directorate from Kiev. In February 1919 they also set up a Lithuanian-Belorussian Republic . This government was very unpopular due to terror and the collection of food and goods for the army. Officially, however, the Soviet Government denied charges of trying to invade Europe. As Polish-Soviet fighting progressed, particularly around the time Poland's Kiev Offensive had been repelled in June 1920, the Soviet policy-makers, including Lenin, increasingly saw the war as a real opportunity to spread the revolution westwards. Historian Richard Pipes noted that before the Kiev Offensive, the Soviets had prepared for their own strike against Poland.

Which occured first, setting up the Lithuanian-Belorussian Republic or the Brest-Litovsk Treaty?
A: Brest-Litovsk Treaty

During the war, the Russian army organized the Crimean campaigns of 1687 and 1689, which both ended in Russian defeats. Despite these setbacks, Russia launched the Azov campaigns in 1695 and 1696, and after raising the siege in 1695 successfully occupied Azov in 1696.

How many years was the crimmean exchange after 1689?
A: 2

In July 1449 Esen Tayisi of the Mongols launched a large-scale, three-pronged invasion of China with his puppet khagan Toqtaq-Buqa. He personally advanced on Datong in August. The eunuch official Wang Zhen, who dominated the Ming court, encouraged the 22-year-old Zhengtong Emperor to lead his own armies into battle against Esen. The size of Esen's army is unknown but a best guess puts it at some 20,000 men. The Ming army of about 500,000 was hastily assembled; its command was made up of 20 experienced generals and a large entourage of high-ranking civil officials, with Wang Zhen acting as field marshal. On August 3 Esen's army crushed a badly supplied Chinese army at Yanghe, just inside the Great Wall. The same day the Emperor appointed his half-brother Zhu Qiyu as regent. The next day he left Beijing for Juyong Pass. The objective was a short, sharp march west to Datong via the Xuanfu garrison, a campaign into the steppe and then a return to Beijing by a southerly route through Yuzhou. Initially the march was mired by heavy rain. At Juyong Pass the civil officials and generals wanted to halt and send the emperor back to Beijing, but their opinions were overruled by Wang Zhen. On August 16, the army came upon the corpse-strewn battlefield of Yanghe. When it reached Datong on August 18, reports from garrison commanders persuaded Wang Zhen that a campaign into the steppe would be too dangerous. The "expedition" was declared to have reached a victorious conclusion and on August 20 the army set out back toward China proper.

Which army was being attacked first, the Mongol army or the Esens army?
A:
Esen's arm