The United States displayed a keen interest in the nature, progress and results of the Yom Kippur War, because the fighting was thought to reflect how non-nuclear hostilities between the North Atlantic Treaty Organization (NATO) and the Warsaw Pact (WP) would unfold on the plains of central Europe in case war broke out there. In contrast to many observers of the war, who concluded that the losses suffered by the Israel Defence Forces (IDF) at the hands of Egyptian and Syrian anti-aircraft and anti-tank weapons had rendered the aircraft and the tank largely impotent, thereby revolutionizing how wars would be waged in the future, Central Intelligence Agency (CIA) analysts and United States Army Training and Doctrine (TRADOC) Command officers, based upon an in-depth review of the nature, progress and results of the fighting, re-affirmed the centrality of these weapons systems on the modern battlefield. Rather than focus obsessively on technological developments, they concluded that training, leadership and tactics were ultimately the decisive elements in the Yom Kippur War.