Genghis khan died following a military campaign against
the mongols
the central asians
the tanguts
the mamluks

Genghis Khan died following a military campaign against THE CENTRAL ASIANS. He died in August 1227, during the conquest of Western Xia.

No one is sure what was the cause of Genghis Khan's death. The most widespread version says that he died when he fell from his horse, something very unlikely in a man who spent his life riding. Others say it was a war wound that took him to the afterlife. There are those who speak of typhus, then a widespread affection. Finally, there is no lack of who says that he was stabbed by one of his 36 concubines.

i am pretty sure it is a