Answer:
Nationalism can exist within an empire, but it can also be a contributing factor in the eventual decline and fall of an empire. Nationalism is a powerful emotion that can drive people to fight for the freedom and autonomy of their nation, often at the expense of the larger empire. In the past, nationalist movements have been a major factor in the dissolution of empires, such as the Soviet Union, Yugoslavia, and the Ottoman Empire. Nationalism can also be a powerful tool for imperial rulers, as it can help to unify disparate people and cultures under one central government. Ultimately, it will depend on how the empire is structured, and how it deals with nationalist movements, as to whether it will remain intact or eventually succumb to them.