101 airborne combat patch
101st Airborne Division
Vietnam 1967 - 1968
I Corp or Military Region 1 and Thua Thien Province
was where the majority of the division spent the latter part of 1967 to early 1972.

I Corp consisted of Quang Tri Province, as it’s most northern area of responsibility
then Thua Thien, Quang Nam, Quang Tin, and finally Quang Ngai Province.