Washington and Tehran: Shrinking Bargaining Space |
In August 2012, President Barack Obama warned that if the Syrian government under Bashar al-Assad used or moved chemical weapons, it would mark a “game-changer”—the crossing of a red line that could shift U.S. policy toward military involvement. Chemical weapons were singled out because of their legal prohibition, moral stigma, and proliferation risks.
In August 2013, Syrian forces carried out a large chemical attack in Ghouta, killing hundreds of civilians. The red line appeared to have been crossed. Yet instead of launching military strikes, Washington pursued a diplomatic agreement with Moscow under which Syria declared and dismantled its chemical stockpiles. Critics argued that the decision not to use force weakened American credibility and diluted deterrence. Supporters countered that the agreement achieved the core objective without another Middle Eastern war.
The episode became a case study in deterrence theory: what happens when a publicly articulated threat is not enforced militarily? Does restraint preserve flexibility—or shrink future bargaining space?
The current standoff between the United States and Iran presents a similar credibility dilemma. President Donald Trumphas threatened sweeping military action if Iran refuses a new agreement restricting its nuclear program—and potentially its missile arsenal. Tehran, for its part, threatens regional escalation, missile barrages, and economic disruption, including risks to Gulf energy infrastructure and the Strait of Hormuz. Yet not all threats on either side are equally credible. That gap—between rhetoric and believable resolve—is where bargaining space either expands or collapses, and where attempts to test resolve risk miscalculation.
Deterrence theory begins with a simple proposition:........