Taking of Kazan

The Russo-Kazan Wars was a series of wars fought between the Khanate of Kazan and Muscovite Russia from 1438, until Kazan was finally captured by Ivan the Terrible and absorbed into Russia in 1552.

In 1438, a year after the khanate's foundation, the very first khan of Kazan, Olug Moxammat, advanced on Moscow with a large army. Vasily II of Moscow fled from his capital across the Volga River, but the Tatars refused to pursue the campaign and turned back to Kazan after devastating Kolomna and the locality.

The campaign of 1445 was disastrous for Muscovy and had major repercussions in Russian politics. Hostilities broke out when Khan Maxmut took the strategic fortress of Nizhny Novgorod and invaded Muscovy. Vasily II mustered an army and defeated the Tatars near Murom and Gorokhovets. Thinking the war over, he disbanded his forces and returned to Moscow in triumph, only to learn that the Tatars had besieged Nizhny Novgorod again.

A new army was mustered and marched towards Suzdal, where they met the Russian generals who had surrendered Nizhny to the enemy after setting the fortress on fire. On 6 June 1445 the Russians and the Tatars clashed in the Battle of the Kamenka River near the walls of St. Euphemius Monastery. The battle was a resounding success for the Tatars, who took Vasily II prisoner. It took four months and an enormous ransom to salvage the monarch from captivity.

A fragile peace was broken in 1467, when Ivan III of Russia decided to support his ally Qasim's claims to the Tatar throne and declared war on the ruling khan Ibrahim. Ivan's army sailed down the Volga, with their eyes fixed on Kazan, but autumn rains and rasputitsa ("quagmire season") hindered the progress of Russian forces. When frosty winter came, the Russian generals launched an invasion of the northern Vyatka Region. The campaign fell apart for lack of unity of purpose and military capability.

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Wikipedia