Nuclear weapons create a vastly unequal security environment. This idea has been debated by scholars for decades. Nuclear weapons have been called a revolution in military affairs, and created whole fields of study, institutions both civilian, commercial and military. Their explosive power makes them not just another bomb. The display of power in 1945 appeared to make self-evident the ensuing claim that the US, and shortly thereafter Russia, and the others that followed had escaped the national security logic that prevailed elsewhere; a pre-WWII logic based on the limits of conventional warfare.
