Situated directly at the entrance of the Persian Gulf, Hormuz Island occupies a commanding position over shipping lanes connecting global energy markets with Gulf producers. Its geography gives it relevance far beyond its size or population.

Historically contested due to its position, the island has long been used to project control over maritime traffic. In modern Iranian doctrine, it forms part of a layered coastal and island-based deterrence system in the Strait of Hormuz.

Hormuz Island dominated the entrance to the Persian Gulf for centuries and was seized by the Portuguese in 1507 as a strategic base for their Indian Ocean empire. The island became one of the most valuable trading posts in Asia, with merchants from across the Indian Ocean world paying customs to the Portuguese garrison. Shah Abbas I, with English East India Company naval assistance, expelled the Portuguese in 1622 and transferred Gulf trade to the mainland port that became Bandar Abbas.

After this strategic reorientation the island lost commercial significance but retained geographic importance. After 1979 it was integrated into the layered asymmetric maritime defence system Iran has developed to threaten shipping access to the Gulf.

Today Hormuz Island hosts military installations, surveillance infrastructure, and limited civilian settlement. It is a key element in Iran’s ability to threaten, monitor, or control transit through the Strait of Hormuz in crisis scenarios.