In the second military show in less than a month, Iran will hold a new set of maneuvers in the strategic waters of the Persian Gulf and the Sea of Oman, Iranian media reported on Tuesday. Iran regularly holds such military exercises but they are likely to heighten tensions, coming at a time of a deepening standoff between the West and Tehran over the country's controversial nuclear program. "The massive maneuvers dubbed Velayat-89 will show (Iran's) defensive and deterrent naval power," Iranian Navy chief Adm. Habibollah Sayyari was quoted as saying by the official IRNA news agency. Submarine and air force units are also due to participate, he added.