The Korean War, the Bay of Pigs, the Cuban Missile Crisis, Vietnam, Cambodia, Lebanon, El Salvador, Grenada, Iran-Contra, Nicaragua, Panama, the Gulf War, Somalia, Kosovo, Afghanistan, Iraq What do these events and scores of others have in common? Each of these wars, incursions, invasions, and covert actions was undertaken by the United States without the benefit of a declaration of war. Where congressional sanction was sought, it usually...