What does the word "Tun" mean when stationing troops?

1, station troops: station: guards; Reclaim wasteland; Stationed.

2. guards. From "Han Shu Guan Bai Gong Qing Biao": "A city gate captain is responsible for stationing troops under Shijing City." ; Refers to the army that reclaims wasteland. From "Ming History: Food 1": "There are 100 soldiers and 100 households, 300 people and 1,000 households, and the commander is more than 500 people." ; Garrison. From the poem "Liu Sima Zhi": "General Xinshang, Wei Shui is more stationed." ; "Yuan Keli Chen Fa-Ice Sea Time": "He can park on other islands, but Guanglu and Changshan can station troops." ; Chapter 31 of Romance of the Three Kingdoms: "Cao Cao Cang Ting broke the book, Liu Bei kept Jingzhou": Cao Cao was frightened and left Cao Hong to station troops on the river, bluffing.