Operation Van Buren
Operation Van Buren was a harvest security operation conducted by the 1st Brigade , 101st Airborne Division in the Tuy Hòa Valley , Phú Yên Province , lasting from 15 January to 25 February 1966 . 
<triplet> Operation Van Buren <subj> 25 February 1966 <obj> point in time <triplet> Tuy Hòa <subj> Phú Yên Province <obj> located in the administrative territorial entity