Iran has adopted an aggressive military posture in recent months in response to increasing threats from the U.S. and Israel of possible military action to stop Iran's nuclear program.
The Iranian navy's exercises, which began on Saturday, involve submarines, missile drills, torpedoes and drones. A senior Iranian commander said Wednesday that the country's navy is also planning to test advanced missiles and "smart" torpedoes during the maneuvers.
The war games cover a 1,250-mile (2,000-kilometer) stretch off the Strait of Hormuz, northern parts of the Indian Ocean and into the Gulf of Aden near the entrance to the Red Sea and could bring Iranian ships into proximity with U.S. Navy vessels in the area.
The moderate news website, irdiplomacy.ir, says the show of strength is intended to send a message to the West that Iran is capable of sealing off the waterway.
"The war games ... are a warning to the West that should oil and central bank sanctions be stepped up, (Iran) is able to cut the lifeblood of the West and Arabs," it said, adding that the West "should regard the maneuvers as a direct message."