When Actions Speak Louder Than Words: Adversary Perceptions of Nuclear No-First-Use Pledges

Summary

Would the world be safer if the United States pledged to never use nuclear weapons first? Supporters say a credible pledge would strengthen crisis stability, decrease hostility, and bolster nonproliferation and arms control. But reactions to no-first-use pledges by the Soviet Union, China, and India suggest that adversaries perceive pledges as credible only when the political relationship between a state and its adversary is already relatively benign, or when the state’s military has no ability to engage in nuclear first use against the adversary.