Who is John Sidney McCain Junior from Faith of My Fathers and what is their importance?

John Sidney McCain Junior, better known as Jack, entered the United States Naval Academy when he was sixteen-years-old. He had little regard for studying or following the rules, but over time became dedicated to a career as a submariner. After years of hard work, he became a four-star admiral, just like his father.

Jack is described as a devoted family man. He was a fair man, who never used his position to garner benefits unavailable to others. Proof of this trait is evidenced in his refusal to accept special favors while John was a prisoner of war in Vietnam. Jack found great strength and solace in God and spent long periods of time in prayer.