I wish I could remember the cartoonist, but back when the United States embarked upon the first Gulf War, someone drew a memorable cartoon titled "Texans at War."
Next to each other on twin platforms were two presidents from Texas. Each was holding a document titled "Rules of War." In LBJ's hand was a long list of things the military would not be allowed to do in Vietnam. Don't bomb here. Don't attack there. Don't use this weapon. Don't use this tactic. Don't go here. Do do this. It was a politician's guide to limiting his own military, making victory almost impossible.