The term empire refers to the existence of a sovereign state that consists several territories and denizens of that territory also abide by to one single authority. Moreover, it can further be stated that there are two major ways of maintaining an imperial structure within a state. The concept of empire and imperialism are both connected with each other. According to Roberts (2010), the term empire establish association with the concept of imperialism with its aim of creating and maintaining unequal relationships among various nations even when the policy of a state is headed by an emperor or an empress.