Iran's Islamic Revolutionary Guard Corps (IRGC) has unveiled a new "area of control" covering parts of the Strait of Hormuz [1].
The move signals a tightening of Tehran's grip on one of the world's most critical maritime chokepoints. Because the waterway is a primary artery for global energy, any disruption to traffic could trigger immediate volatility in international oil markets.
The IRGC announced the new map and the accompanying "Control Zone" on May 4, 2024 [2]. According to the announcement, the IRGC has established a tiered system for vessels seeking passage through the narrow waterway between Iran and Oman [1].
Tehran said that it will use force against ships that violate these new rules [1]. While some reports suggested a total closure of the Strait, other accounts indicate the IRGC is instead implementing a specific area of control to manage vessel traffic [3].
The strategic importance of the region is underscored by the volume of cargo passing through the area. Approximately 20% of the world's oil passes through the Strait of Hormuz [4].
This escalation comes amid ongoing regional tensions. The IRGC said it intends to use the zone to increase oversight of maritime activity and ensure that vessels adhere to the new regulatory framework [1].
“Iran's IRGC unveiled a map outlining a new ‘area of control’”
The establishment of a formal 'Control Zone' allows Iran to institutionalize its presence in the Strait of Hormuz, moving from sporadic interference to a structured regulatory regime. By threatening force for non-compliance, Tehran increases its leverage over global energy supplies and creates a legalistic pretext for intercepting vessels, which may heighten the risk of naval confrontations with international coalitions.
