abstract:The Mouse That Roared is a 1955 Cold War satirical novel by Irish-American writer Leonard Wibberley, which launched a series of satirical books about an imaginary country in Europe called the Duchy of Grand Fenwick. Wibberley went beyond the merely comic, using the premise to make still-quoted commentaries about modern politics and world situations, including the nuclear arms race, nuclear weapons in general, and the politics of the United States.