What regions did the Mongol leaders conquer?

The Mongol leaders, particularly under Genghis Khan and his successors, conquered vast territories across Asia and Europe. They established the largest contiguous empire in history, stretching from Eastern Europe and the Middle East to Central Asia and parts of China. Key regions included the Khwarezmian Empire, Persia, the Russian principalities, and significant portions of the Song Dynasty in China. Their conquests greatly impacted trade, culture, and political structures across these regions.