Answer:
The campaign was heralded by the Battle of the Kalka River in May 1223, which resulted in a Mongol victory over the forces of several Rus' principalities. ... All Rus' principalities were forced to submit to Mongol rule and became vassals of the Golden Horde empire, some of which lasted until 1480
Explanation:
Three factors fueled American Imperialism.
Economic competition among industrial nations. Political and military competition, including the creation of a strong naval force. A belief in the racial and cultural superiority of people of Anglo-Saxon descent.
The monarchy undertakes constitutional and representational duties
