Career
He was murdered with poison after governing for ten years. Tugstumur Khan was invested to the throne in 1378 during a tumultuous period between Mongolia and China. Tugstumur took the title Uskhal and instituted negotiations and military exercises to foster unity among the Mongolian provinces.
Intent to increase the size of the his military, Tugstumur Uskhal recruited soldiers from Karakhorum and from Incheon to prepare for operations in China.
The Chinese government also escalated their military preparations. In 1380 the Chinese sent soldiers to maneuver along the border and to penetrate into Mongolia.
Under the guidance of general Mu-In, Chinese divisions invaded Mongolia and the light horse cavalry successfully occupied Karakhorum, ravaged several provinces and took many Mongolians prisoner. During this time, in 1380, Tugstumur Khan had based his center of operations in Incheon.
He ordered Mongolian commanders Ulzibukh and Narbukh to attack Luleen City in the eastern part of China’s Khebei province, where they assassinated China’s Lyu-Guan, a great military commander of the Minister state.
In 1381 the Minister State retaliated. Under the leadership of commander Cyuie-Da, Chinese forces penetrated Chiphen. During the following six years (1382-387), Mongolia and China rested from wartime antagonism and retribution, and the Minister state maneuvered into position.
In 1384 the Gaoli state submitted to the Minister Empire and severed their diplomatic relations with Mongolia.
Nagachug, a relative of Mukhulai van (son-in-law or aristocrats) controlled numerous forces and occupied the land to intimidate the Gaoli state and maneuver into their territory. The Minister state was very wary of possible unity between Tugstumur Khan and Nagachug.
Minister was concerned that such a unity could potentially triumph over Minister military forces. Therefore, Minister decided to focus their efforts toward the annihilation of Nagachug"s armies.
By 1387,the Minister state concentrated its forces in Lyaodun to destroy commander Nagachug’s military forces in the Yuan state.
In 1384 year two thousand Vhinese soldiers under the guidance the commander Phen Shen fought against Nagachug’s armies and both sides suffered severe casualties. But since the Chinese forces had succeeded in gaining better battlefield position, Nagachug’s armies found themselves in a hopeless situation and they surrendered. Subsequently, The Minister state began to position its main forces against Tugstumur Khan.
By the spring of 1388, Mongolia and Minister State engaged in a campaign that ended Tumgstumur"s ambitions for control of Minister China.
Tugstumur"s second son was captured along with Tugstumur"s leading minister, and lords. In all, the Chinese took nearly three thousand people and over one hundred and fifty thousand head of cattle.
When Tugstumur Khan reached the Tuul river, he was attacked by Esunder, lord of Argbukh origin. Conscious of the weakness in his military force.
Tugstumur Khan set out to unite with the armies of commander Markhas.
Unfortunately, a three-day snowstorm barred Tugstumur Khan"s advance. Ultimately, Esunder dispatched a courier to capture Tugstumur Khan. The courier murdered Tugstumur Khan in 1388.
