Original: The novel Catch-22 envisages a U.S. Army Air Corps bomber squadron based on the island during World War II , though author Joseph Heller conceded that he took some literary license in making Pianosa big enough for a major military complex .
Simplified: In the novel Catch-22 , a U.S. Army Air Corps bomber squadron is based on the island during World War II , There is another , even smaller island called Pianosa off the Adriatic coast of Italy .