Literary Devices In Catch 22

By definition catch 22 means a dilemma or difficult circumstance from which there is no escape because of mutually conflicting or dependent condition. In this novel we are introduced to a main character named yossarian, his tired of fighting and tries whatever he can to leave the war but has no option but to stay because it's a direct order from colonel cathcart. In catch 22, Joseph heller uses war to display this paradoxical circular of reasoning within the action of the characters and mentality too; During the war characters are asked to risk their lives again and again for reasons that are utterly illogical and unimportant.
In chapter one we are introduced to our protagonist, he is in the hospital. “ yossarian was in the hospital with liver