The H* Chi Minh Trail was important to the North Vietnamese and the NLF because the trail was a route to move goods to allies in South Vietnam.
The north Vietnamese was able to control this territory and set up their guirella army in H*Chhimin. Which led to their victory in the vietnam war.
The H* Chí Minh trail constituted a logistical system that ran from the Democratic Republic of Vietnam to the Republic of Vietnam through the kingdoms of Laos and Cambodia.