INS Aridhaman, nuclear-powered submarine, enters India’s naval fleet

Defence Minister Rajnath Singh presided over a brief ceremony to formally commission the country’s third nuclear submarine, INS Aridhaman (S4), which is the third in the Arihant-class of SSBNs (Submersible Ship Ballistic Nuclear), on Friday (April 3) at Visakhapatnam. The boat, being part of the strategic weapons programme, falls under the domain of the Strategic Forces and is part of the country’s nuclear triad. As per sources in the Navy, the commissioning was not made public and was carried out quietly, but Mr. Singh dropped enough hints to acknowledge the commissioning of the vessel.

Iran military says downed second U.S. jet in Gulf

Iran shot down two U.S. military planes in separate attacks on Friday (April 4, 2026), with one service member rescued and at least one missing, in a dramatic escalation since the war began nearly five weeks ago. It was the first time U.S. aircraft had been downed in the conflict and came just two days after President Donald Trump said in a national address that the U.S. has “beaten and completely decimated Iran” and was “going to finish the job, and we’re going to finish it very fast.” One fighter jet was shot down in Iran, officials said. A U.S. crew member from that plane was rescued, but a second was missing, and a U.S. military search-and-rescue operation was underway.