Answer: Mutually Assured Destruction - a military strategy put in place to help prevent nuclear warfare.
Explanation: Mutually Assured Destruction, also known as MAD, is a doctrine of military strategy and national security policy in which a full-scale use of weapons by two or more opposing sides would cause the complete annihilation of both the attacker and the defender. It shaped the nuclear arms race in a drastic way, as it helped to remind both parties that neither side could expect to survive a full-scale nuclear exchange as a functioning state.
He gets land because he is the ruler of the land.
The song attempts to put blame for the Vietnam war upon the politicians and leaders of the US military and the industry that makes its money from war