Iran Tightens Restrictions on Strait of Hormuz Citing U.S. Treaty Breach

Iran has intensified its control over the Strait of Hormuz, a critical global oil chokepoint, following allegations that the United States violated a prior diplomatic agreement. On April 18, 2026, the Iranian military command issued a statement during a live broadcast asserting that the U.S. has maintained a naval blockade on Iranian shipping despite previous commitments to the contrary. Tehran labeled the continued American naval presence and restrictions as a "direct breach of trust." As of this update, the Trump administration has not released an official statement regarding the new restrictions or the allegations of a broken agreement. There have been no reported military engagements or new sanctions issued within the last 24-hour window. While maritime tensions have escalated, the full economic impact and the reactions of regional allies remain to be seen as the situation develops at the flashpoint.