Quang tri is already a poverty-stricken province where more than 80 percent of the land is affected by unexploded munitions from the Vietnam War, according to an official survey last year.
During the cold war, the Soviet Union was the biggest exporter ofmunitions in the world.
冷战期间的苏联是世界军火出口第一大国。
3
The task for air defense and antimissile guided missile is more and more difficult because mass precision guided munitions (PGM) is used on seat ofwar.