Dominic Tierney, a political science professor at Swarthmore College, identifies structural patterns that consistently trap the United States in prolonged foreign conflicts. Speaking with NPR's Scott Simon, Tierney examines the U.S.-Iran tensions and broader military entanglements that have characterized American foreign policy for decades.
Tierney argues that the United States falls into predictable cycles with adversaries. The pattern begins with initial confidence in military superiority, followed by underestimation of opponent resolve and overestimation of America's ability to achieve quick victories. These miscalculations lead policymakers to commit forces incrementally, making gradual escalation difficult to reverse.
The U.S.-Iran relationship exemplifies this dynamic. Decades of mutual hostility, combined with regional proxy conflicts and competing strategic interests, have created conditions for sustained tension. American military involvement in Iraq, Syria, and Afghanistan demonstrates how initial interventions expand into indefinite commitments that consume resources and political capital without resolving underlying conflicts.
Tierney highlights cognitive biases affecting decision-makers. Sunk-cost fallacy encourages continued investment in failing strategies rather than withdrawal. Organizational inertia within the Pentagon and State Department perpetuates policies long after their effectiveness diminishes. Political leaders also resist admitting failure, fearing loss of credibility both domestically and internationally.
The scholar suggests structural factors compound these psychological barriers. Once the U.S. establishes military bases and forward-deployed forces, institutional interests develop around maintaining that presence. Congressional districts benefit from defense spending. Contractors profit from ongoing operations. These constituencies create constituencies for perpetual conflict.
Breaking these patterns requires explicit decision-making frameworks that force regular reassessment of strategic objectives and exit criteria. Policymakers must acknowledge when initial assumptions prove incorrect and adjust course accordingly. Tierney's analysis suggests that without deliberate institutional reforms, the U