Iran’s armed forces will hold a joint, four-day naval exercise with Russia and China in the northern part of the Indian Ocean, a spokesman said Wednesday.
The drill, which is to start on Saturday, will be the first such trilateral exercise as Tehran seeks to boost military cooperation with Beijing and Moscow amid unprecedented economic sanctions from Washington.
Visits to Iran by Russian and Chinese naval representatives have also stepped up in recent years.
The drill is seen as a response to recent U.S. maneuvers with its regional ally Saudi Arabia, in which China also participated.
In the wake of recent escalating tensions in the Persian Gulf, including attacks on oil vessels and a missile-and-drone assault on the Saudi oil industry, the U.S. has sent a number of American troops to the region and additional missile defense systems to Saudi Arabia.
Washington alleges that Iran carried out the September attack on the world’s largest oil processor in the kingdom and an oil field, which caused oil prices to spike by the biggest percentage since the 1991 Gulf War.
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While Yemen’s Iranian-allied Houthi rebels claimed credit for the assault, Saudi Arabia said it was “unquestionably sponsored by Iran.”
Iran has denied this and warned that any retaliatory attack targeting it would result in an "all-out war."
Tehran, meanwhile, has also begun enriching uranium beyond the terms of its 2015 nuclear deal with world powers, which the U.S. unilaterally withdrew from over a year ago.
In 2017, Iran conducted a joint naval exercise with China near the strategic Strait of Hormuz in the Persian Gulf, a passageway for nearly a third of all oil traded by sea.