Kublai Khan's Campaigns

Campaigns against China
The campaign for Kublai Khan to conquer China under the Song Dynasty were specified under the years between 1266-1276. This included the declaration of Kublai Khan as the new emperor of China in the year 1271 This was the start of the Yuan Dynasty that was a rule incorporated with elements of both Mongul and Chinese influences. After successfully eliminating all resistance to the new Yuan dynasty, Kublai Khan wanted to expand his empire by attacking Japan and built around 300-600 vessels in preparation for the assault on Japan.

Campaigns against Japan
Kublai Khan's armada in 1274 made a tactical mistake by sailing into open seas that became targets for the Japanese cannons. Suffering heavy losses, the remaining fleet retreated and prepared for next assault again on 1281. Again on 1281, the Japanese samurais were more than prepared to hold off an invasion attempt by the Kublai Khan's fleet, and which they did so with great success. Even though the campaign failed in the end due to stiff Japanese resistance, Kublai Khan's campaigns saw the development of gunpowder as a form of weaponry.