President Donald Trump announced on Sunday that the United States will impose a naval blockade on Iran’s ports in the Strait of Hormuz after diplomatic talks between the two nations failed to produce an agreement. The announcement sent shockwaves through global markets and raised concerns about potential military escalation in the Middle East.

The blockade, which Trump described as necessary to pressure Iran into abandoning its nuclear program, would effectively cut off one of the world’s most critical oil shipping routes. The Strait of Hormuz handles approximately 20% of global oil shipments, making it a vital artery for international energy markets.

“We gave them every opportunity to make a fair deal,” Trump said in a statement from the White House. “Iran refused to negotiate in good faith, so we must take stronger action to protect American interests and global security.”

The failed negotiations, which took place over the weekend, reportedly stalled on several key issues including Iran’s uranium enrichment program, the reopening of shipping lanes, and the release of frozen Iranian assets. Vice President JD Vance led the U.S. delegation in what were described as “friendly but ultimately unproductive” talks.

International reaction has been swift and divided. The United Kingdom announced it would not participate in the blockade, with a government spokesperson stating that “unilateral military action risks further destabilizing an already volatile region.” Other European allies have expressed similar concerns while stopping short of condemning the U.S. decision.

Oil prices surged more than 8% in early trading Monday following the announcement, with Brent crude briefly touching $100 per barrel. Analysts warn that a prolonged blockade could send prices even higher, potentially triggering a global energy crisis.

The situation remains fluid, with Iran’s response still uncertain. Iranian officials have previously threatened to close the strait themselves if their interests are threatened, raising the specter of direct military confrontation between the two nations.