The Comparison of the Early Era of 20th and 21st Centuries: An Analysis of the Diver gent and Convergent Facts

It is unavoidable that being of differential design of the political, military, social and economicat the beginning of 20th and 21st of centuries and this is a result of human being development. Thedevelopments at these centuries have considerable implication regarding human being history. Therefore,the intensiveness, velocity and prevalence of the developments have differentiated in many ways whencomparing the former centuries and millennium. However, although the political, military and economicsituation at the beginning of the 20th and 21st of centuries are different from each other in essence theyhave many commons facts either. The excessive growth of imperial power, the competition among majorpowers, the unstable alliance system, support of terrorism by some regimes and the existence of majorpowers balancing each other are the common characteristics at the beginning of the 20th and 21st ofcenturies.