At the end of World War, the United States, proclaimed themselves as a dominant world power. Following the Second World War that reality was even more blatant. Europe, shattered and destroyed was rebuilt with support from the United States further exacerbating the divide between the two continents. The USSR meanwhile, transformed from a cold war competitor of the United States to the superpower that was. At the end of the century, the U.S. was the only superpower in the world. At present they are involved in almost all conflicts that erupt in various parts of the world (the Gulf War, Somalia, Kosovo, East Timor and others) and even assert themselves as "world policemen", for better or for worse. What are the factors that have caused this hegemony and can the U.S. call themselves the world's policeman? In other words what are the elements that could affect such a hegemony? To answer this, we will at first provide a brief overview of the United States, and second we will describe what factors make Americans the superpower at an economic and political level, and also in culture. Finally in the last part we will see the why the officers questioned the superpower status of Americans.