US-Iran Ceasefire Collapses as Military Exchanges Escalate Near Strait of Hormuz

What Happens Next

• →Maritime insurance premiums for Strait of Hormuz transit surge 30-50%, with major shipping lines rerouting tankers around the Cape of Good Hope, adding 10-14 days to Europe-bound crude deliveries and tightening short-term supply.
• →Gulf Cooperation Council states accelerate bilateral security agreements with non-US partners — particularly France and the UK — to hedge against perceived US unpredictability as a regional security guarantor.
• →Backchannel negotiations, despite the public ceasefire collapse, constrain both sides from full escalation, but the breakdown provides domestic political cover for hardliners in Tehran to accelerate uranium enrichment past the 60% threshold.

Near-term: Shipping disruptions and insurance cost spikes through the Strait of Hormuz compress global crude supply margins within weeks, pushing Brent crude above $100/barrel and straining import-dependent economies in Asia and Europe. Long-term: Repeated ceasefire collapses erode the credibility of US-brokered security frameworks in the Persian Gulf, accelerating a multipolar security architecture in the region where China, India, and European states play larger guarantor roles.