success of deterrence is determined by the strategy available to the potential attacker. He lays out three strategies. Firstly, an attrition strategy entails a high level of uncertainty about the outcome of war and high costs for the attacker. Secondly, a limited-aims strategy entails fewer risks and lower costs. Thirdly, a blitzkrieg strategy provides a way to defeat the enemy rapidly and decisively with relatively low costs. For Mearsheimer, failures in the modern battlefield are caused mostly by the potential attacker's belief that it can successfully implement a blitzkrieg strategy in which tanks and other mechanized forces are employed swiftly to cause deep penetration and to disrupt the enemy's rear. The two other strategies are unlikely to lead to deterrence failures because they entail a low probability of success, accompanied by high costs (war of attrition) or limited gains and the possibility of the conflict turning into a war of attrition (limited aims). However, if the attacker has a coherent blitzkrieg strategy available, an attack is likely to ensue because its potential benefits outweigh the costs and risks of starting a war. Besides analyzing cases from World War II and the Arab–Israeli conflict, Mearsheimer's 1983 book extrapolates implications from his theory for the prospects of conventional deterrence in Central Europe during the late Cold War. It argues that a Soviet attack is unlikely because the Soviet military would be unable to successfully implement a blitzkrieg strategy. The book argues that the balance of forces, the difficulty of advancing rapidly with mechanized forces through Central Europe, and the formidable NATO forces opposing such a Soviet attack results in low chances for the Soviets to start a conventional war in Europe. B. H. Liddell Hart Mearsheimer's second book, Liddell Hart and the Weight of History (1988), reassesses the intellectual legacies of the 20th century British military theorist B. H. Liddell Hart. While acknowledging that his own research had "profited greatly from his stimulating writings" and that Liddell Hart's works should still be considered "essential reading for serious students of strategy and warfare" (p. x), Mearsheimer argues that much of the conventional wisdom on Liddell Hart's contributions to modern military thought was flawed. In particular, the theory of the indirect approach, which Liddell Hart developed in the 1930s, is so vague and tautological that "virtually every military victory can be ascribed to [it]." (p. 87). Moreover, Liddell Hart's limited attempts to operationalize the