Which Mongol conquest was most successful?

Question

Quizplus · Accepted Answer

The Mongol conquest of China was the most successful as it resulted in the formation of the largest contiguous empire in world history, the Yuan dynasty. The Mongols were able to conquer the Song dynasty, which had previously resisted the Jin dynasty and maintained a strong navy. The conquest of China also brought significant economic and cultural benefits to the Mongol Empire, as China was one of the most advanced and prosperous civilizations of the time. The conquest of Japan, on the other hand, was ultimately unsuccessful and resulted in the loss of many Mongol lives due to natural disasters and fierce resistance from the Japanese defenders.

Which Mongol Conquest Was Most Successful