During the Civil War, men drafted into war had the option of hiring substitutes to fight in their place. Professor Sandel asks students whether they consider this policy just. Many do not, arguing that it is unfair to allow the affluent to avoid serving and risking their lives by paying less privileged citizens to fight in their place. This leads to a classroom debate about war and conscription. Is todays voluntary army open to the same objection? Should military service be allocated by the labor market or by conscription? What role should patriotism play, and what are the obligations of citizenship? Is there a civic duty to serve ones country? And are utilitarians and libertarians able to account for this duty?