The attitudes and assumptions of different cultures and historical periods toward war and the maintenance of peace are reviewed by recalling authors who include Euripides, Sophocles, Plato, Cervantes, Shakespeare, Hobbes, and Zola. The challenges of war, peace, and national security for and by Americans are examined, and documents such as the Declaration of Independence and the Constitution of 1787. The lives and thought of eminent Americans are also recalled (including George Washington, Thomas Jefferson, Abraham Lincoln, and Franklin Roosevelt), as well as the challenges posed by incidents such as the Dreyfus Affair and monstrosities such as the Second World War Holocaust. The Appendixes reinforce these inquiries by providing critical documents in American history and interviews with a Holocaust survivor.