This book investigates the legal use of terror as a weapon to accomplish national goals and objectives. This book does not advocate using terrorism. Terrorism, for the purpose of this book is illegal. Legal terror, by my criteria, conforms to the standard-is of the laws of land warfare. Specific criteria are established to define what constitutes using legal terror as a weapon. These criteria are used to analyze specific case studies to determine if the United States has used legal terror in the past. There are two major factors in defining legal terror. First, the target must be legally viable as defined by the laws of land warfare. Secondly, the method of engaging that target must also conform to the laws of war. The conclusion of this study is that legal terror is a legitimate weapon. It has been used in the past and will probably be used in the future.