What is the main conflict in Born on the Fourth of July by Ron Kovic?

Born on the Fourth of July is a candid memoir by Ron Kovic published in 1976, the year after the United States pulled out of Vietnam and ended the war. It details Kovic's journey from a stereotypical all-American boy during the 1950s to an eager soldier in Vietnam in the mid-1960s. It also explores his paralysis from the chest down as a result of combat in Vietnam, his later disillusionment with American policy towards Vietnam and the war, and his involvement in the anti-war movement.