 Complete the following phrase:  Whether the attainment of independence is different from revolution has long been contested, and has often been debated over the question of violence as legitimate means to achieving sovereignty. In general, revolutions aim only to redistribute power with or without an element of emancipation, such as in democratization within a state, which as such may remain unaltered. For example, the Mexican Revolution 1917 chiefly refers to a multi-factional conflict that eventually led to a new constitution; it has rarely been used to refer to the armed struggle 1821 against Spain. However, some wars of independence have been described as revolutions, such as the ones in the United States 1783 and Indonesia 1949, while some revolutions that were specifically about a change in the political structure have resulted in breakaway states. Mongolia and Finland, for example, gained their independence during the revolutions occurring in China 1911 and 