Grand Fenwick is a fictional microstate located in the Alps, created by author Leonard Wibberley in his satirical novel, "The Mouse That Roared." The country is known for its small size, quirky culture, and unique political situations, often involving humorous conflicts with larger nations. The story revolves around Grand Fenwick's attempts to gain international recognition and economic stability. The inhabitants, led by their eccentric Duke, devise a plan to declare war on the United States in hopes of receiving aid and support. This leads to a series of comedic events that highlight the absurdities of politics and diplomacy.