Lecture 11: national security doctrine and military dictatorships in the southern cone. The us is supporting the chilean army but they are not directly involved like people are in guatemala. Many people will be disappeared or killed without trial in the following years. Chile is not alone in having a military dictatorship. The dictatorships were reactions to the strict reforms that the countries had adopted such as agrarian reforms. Many armies take power in the name of stopping the spread of communism. Military dictatorships saw themselves as a joint alliance to fight international communism (aka international terrorism) Military leaders embraced a set of ideas known as latin american national security. Doctrine sovereignty of a nation lied in the requirements of a state"s survival. Doing all that was necessary to keep the state from collapsing, dissolving, breaking into civil war, or surrendering to another country.