Military spending should be understood as the set of all those economic items that have as their destination the defense and armed security of a state, excluding the forces destined to safeguard the internal order as a police or non-military security forces. Thus, the military expenditure is that destined to the maintenance of the Armed Forces.
The reasons that the Prime Minister gives for making large appropriations to the military are to defense against threats (as with a largest military spending more and better military equipement would be obtained), protection of resources (due to the fact that military custody of the natural resources work as a deterrent for further invasions), and for the maintenance of independence (since it is the military who responds in case of an external aggression).
The Vietnam war occurred because north corea and south corea were fighting if all of Corea should be a communist or union country. started November 1st 1955 - April 30th 1975