Within Jervis is model of the four worlds of varying security the critical assumption is that there exists a level of ambiguity between offensive and defensive actions. This simplification allows issues to be observed through four imperfect but nevertheless useful extremes. When offensive postures have a distinct advantage but are not distinguishable from defensive ones the world is “Doubly Dangerous” because there is no avenue to avoid the security dilemma. There exists a persistent mistrust between nations because they cannot ascertain each other’s intentions. The U.S- Soviet Union arms race throughout the cold war applies as both countries had concerns over each other’s perceived military superiority. This inevitably led to large amounts
