Despite a ceasefire being in effect, the United States has maintained a blockade around Iran’s ports and the Strait of Hormuz, escalating tensions between the two countries. Iran has reimposed strict control over the vital waterway, saying the move is a response to the US blockade and accusing Washington of breaking its commitments. At least two commercial ships came under fire while attempting to cross the strait on Saturday.

At the center of Iran’s control strategy are small, fast-attack boats operated by the Islamic Revolutionary Guard Corps (IRGC). Many of these vessels, hidden in coastal tunnels, have survived US strikes and can quickly mobilize, attack, and retreat. Their swarm tactics make them difficult to track or target effectively. Although a convoy of eight tankers recently passed through the strait, Iran soon reasserted its dominance over the route.

The situation marks a shift from open warfare to controlled confrontation in one of the world’s most sensitive maritime chokepoints, through which about 20 percent of global oil exports pass.