CATCH-22 is a satirical novel written by Joseph Heller in 1961. It is set during World War II and follows the story of Yossarian, a U.S. Army Air Forces B-25 bombardier. The term 'CATCH-22' has become a popular phrase to describe a no-win situation or a paradoxical situation in which an individual cannot win due to contradictory rules. The crossword solution for CATCH-22 is TRAPS, which accurately describes the situation that Yossarian finds himself in throughout the novel. He is trapped in a cycle of bureaucracy and regulations that prevent him from achieving his goal of escaping the war.