In a paragraph, define nationalism and give an example.

Nationalism is a political ideology that involves a strong identification of a group of individuals with a political entity defined in national terms, i.e. a nation. It is often associated with the belief that a particular nation should be autonomous, and its people should have their own sovereign state. Nationalism can also manifest as a sentiment of patriotism, where individuals express their love and devotion to their country. An example of nationalism can be seen in the American Revolution, where the American colonists, driven by the belief that they were a nation distinct from England, fought for their independence to form their own sovereign state.