(HTML version) by Carl Conetta, PDA Briefing Memo #26, 30 September 2002. US methods of warfare have changed substantially since the Cold War’s end. So have the norms governing the use of force. Since 11 September 2001 there has been an increased impetus to more fully exercise US military primacy and test the promise of the new warfare. Unfortunately, this impetus has not been matched with adequate analysis of either the new methods or the new norms of war.