Located in Hai Son commune, the border city of Mong Cai, thecomplex comprises a monument dedicated to martyrs, Que Hill Outpost, Po HenBorder Checkpoint, and West Hill Observatory.
The complex was built to pay tribute to soldiers andcivilians in Hai Son commune who sacrificed their lives defending the country’s north-easternborder in February 1979 and soldiers of Po Hen Border Station who diedwhile on duty from 1980 to 1991./.
