At the core of Stratfor's worldview is our geopolitical framework for looking at at the constraints and consequences of the actions of world leaders, global businesses and other actors. The limitations placed upon these different actors vary greatly. Whether it be the military constraints facing Ukraine or the geological constraints facing Japan, these variables limit the number of actions a state actor can take. By employing Nash's work in game theory, we can better analyze and understand the framework within which global leaders and states will act, react and make future decisions. Nuclear Deterrence and Game Theory's Utility Game theory emerged from collaboration between an economist and a mathematician. From the start, many of its most important applications have been in strategic and tactical military thinking.