MIND THE GAP
The United States is in the midst of a polarized and bruising debate about the nature and scope of its engagement with the world. The current reassessment is only the latest of many; ever since the United States' rise as a global power, its leaders and citizens have regularly scrutinized the costs and benefits of foreign ambition. In 1943, Walter Lippmann offered a classic formulation of the issue. "In foreign relations," Lippmann wrote, "as in all other relations, a policy has been formed only when commitments and power have been brought into balance.... The nation must maintain its objectives and its power in equilibrium, its purposes within its means and its means equal to its purposes."
Although Lippmann was mindful of the economic costs of global engagement, his primary concern was the political "solvency" of U.S. foreign policy, not the adequacy of the United States' material resources.
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