Why a One-War Posture for the U.S. Military Will Work

For six decades the United States has planned for the capacity to conduct two nearly simultaneous major ground combat operations. During the Cold War, one of those campaigns was assumed to be an all-out struggle against the Warsaw Pact in Europe, the other a conflict in Asia. Since the Cold War, defense secretaries Dick Cheney, Les Aspin, William Perry, William Cohen, Donald Rumsfeld and Robert Gates have adopted some variant of this framework as well. It is time for a change.

Defense Secretary Leon Panetta’s new strategic guidance, unveiled Thursday, moves in this direction, stating that the future U.S. military “will be capable of defeating a major act of aggression in one theater while denying the objectives of — or imposing unacceptable costs on — an opportunistic aggressor in a second theater.” Panetta and President Obama are right to reduce the requirements for a second possible war, which in this era would probably not be a ground war in any case.

The case for scaling back is strong. Let’s consider the major concerns: Saddam Hussein is gone, and whatever threat Iraqis may one day pose to themselves and the region, they are unlikely to invade anyone. Further from home, North Korea has acquired nuclear capabilities, but its conventional forces have weakened and South Korea’s army is greatly strengthened. Russia remains problematic on multiple issues but not because of its military menace to NATO territory. Threats from Iran or China, at least in the short term, are much more likely to involve U.S. naval, air and special forces (which should retain a capacity for handling more than one major operation at a time). The uncertainty and instability from Syria to Yemen to South Asia, however potentially worrisome for American interests, are unlikely to again require large-scale U.S.-led action.

All that said, budget hawks should beware pushing this argument too far. The one-war paradigm is not a prescription for cutting the Army and Marine Corps by a third or more. Cuts in force structure and personnel should not exceed 15 to 20 percent, relative to current levels, and could be made only gradually, after the Afghanistan campaign winds down. Ten-year savings would reach perhaps $150 billion. That is much of the roughly $400 billion mandated by the August provisions of the Budget Control Act but hardly a dent in the (ill-advised) nearly trillion-dollar target required by sequestration.

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