Trump extends Iran ceasefire indefinitely, blockade remains

President Trump announced on April 21–22, 2026 that the US–Iran ceasefire would continue indefinitely, setting the condition that it would last "until such time as" Iran's government submits a "unified proposal" to end hostilities with the US and Israel. Trump cited a personal request from Pakistan's Field Marshal AMAsim Munir and Prime Minister SSShehbaz Sharif. The announcement came hours before the two-week ceasefire was set to expire Wednesday evening.

The shift from a fixed deadline to an open-ended condition represented a significant change in the conflict's framework. Iran must now produce a coherent negotiating position acceptable to its civilian government, its Supreme Leader, and its IRGC military forces before the ceasefire gains any permanence. Trump had explicitly stated on Monday that he would not extend beyond "Wednesday evening 🌲Washington time," but reversed that position within 24 hours after Pakistan's diplomatic push.

Despite the ceasefire extension, Trump directed US military forces to maintain the naval blockade of Iranian ports, stating forces would "remain ready and able" to resume operations. Iran has argued the blockade itself violates the ceasefire terms because it continues to restrict Iranian oil exports and economic activity. On April 22, hours after Trump announced the extension, Iran's Islamic Revolutionary Guard Corps seized two vessels in the Strait of Hormuz.

The continued blockade keeps Iran's economy under severe strain. The Strait of Hormuz carries roughly 20 percent of global oil supply, and the US naval presence has effectively halted Iranian crude exports since operations began in March 2026. Bloomberg reported that Iranian tankers have attempted to break the blockade, with at least two fully laden Iranian oil supertankers sailing past US forces this week, moving roughly 9 million barrels of oil to market.

The War Powers Resolution of 1973 required President Trump to notify Congress within 48 hours of deploying forces and limits military operations to 60 days without congressional authorization. The 60-day deadline for Iran operations passed without authorization, and Trump's administration argued the ongoing ceasefire and blockade don't constitute "hostilities" under the law — a position most constitutional scholars dispute. Congress voted four times on War Powers resolutions, all failing to reach the 60-vote threshold.

Pakistan has served as the primary diplomatic channel between the US and Iran throughout the conflict. Prime Minister SSShehbaz Sharif publicly thanked Trump for "graciously accepting" Pakistan's extension request, calling it an "act of goodwill." Field Marshal Munir brokered the original April 7 ceasefire and secured this first extension, positioning Pakistan as indispensable to any eventual peace deal.

Iran's government faces deep internal divisions over whether and how to negotiate. President MPMasoud Pezeshkian's civilian government has signaled openness to talks, while IRGC factions and hardliners aligned with Supreme Leader AKAli Khamenei have rejected negotiations "under the shadow of threats" as long as the US blockade continues. The IRGC's vessel seizures on the same day as Trump's extension announcement illustrated that Iran's military wing was not coordinating with any diplomatic track.

Vice President JVJD Vance had been scheduled to depart Joint Base Andrews for Pakistan to conduct the second round of high-stakes peace talks. The administration was dealing with what CNN sources described as "virtual silence from the Iranians" regarding whether they would participate in scheduled talks. Rather than allow the ceasefire to expire and restart military operations, Trump extended it.