Iran
Iran's grip over the Strait of Hormuz is throttling the world’s energy supplies and inflicting global economic pain, but a U.S. naval blockade and deepening pressures on its own economy are also testing its ability to withstand the war and defy Washington's demands.
In recent days, Iran and the U.S. have exchanged fire in the Persian Gulf as the ceasefire between the two sides grows increasingly strained and talks appeared to be at an impasse.
Tehran has demanded the lifting of the U.S. blockade and sanctions before entering negotiations over its nuclear program.
Iran's leaders have also insisted that they plan to retain some kind of control over the strategic waterway at the mouth of the Gulf.
