Trump Plans to Blockade the Strait of Hormuz to Pressure Iran, Experts Warn of Difficult Implementation and Potential Retaliatory Escalation

On April 13, U.S. President Trump proposed a maritime blockade of the Strait of Hormuz to pressure Iran into making concessions in negotiations. U.S. Central Command stated the blockade would target vessels entering or exiting Iranian ports and has a set start time. Multiple security and military experts have noted a maritime blockade is effectively an act of war—one requiring massive naval power to sustain long-term, lacking a clear exit strategy, presenting high execution challenges, and raising doubts about its sustainability. Dana Stroul, for instance, said the move would be hard to pull off alone and may not hold up over the medium to long term. Analysts warn the blockade could trigger reciprocal retaliation from Iran. Former U.S. Navy Rear Admiral Gary Roughhead cautioned Iran might attack Gulf shipping or U.S. military installations in the Middle East, escalating regional conflict further. Additionally, the strategy faces complex practical hurdles during implementation: including whether to intercept or even sink third-country oil tankers, and how to handle energy shipments involving U.S. allies. Mark Warner also questioned the plan’s actual effectiveness, noting Iran could still counter it via mining or asymmetric tactics. The Strait of Hormuz handles roughly 20% of global oil shipments, and geopolitical risks have sent oil prices soaring. Markets broadly expect continued tensions to further stoke inflationary pressures and disrupt global energy and financial markets.