Core Viewpoint - The U.S. Navy successfully conducted a test of four unarmed Trident II (D5) ballistic missiles from an Ohio-class submarine, emphasizing the reliability of the weapon system without targeting any international events [1] Summary by Relevant Categories Test Details - The missile test took place from September 17 to 21 in waters near Florida [1] - The Trident II (D5) missiles were launched as part of a planned series of tests [1] - The missiles ultimately landed in the Atlantic Ocean [1] Missile Specifications - The Trident II (D5) was developed in the 1980s and underwent a life extension upgrade in 2017, extending its service life into the 2040s [1] - The missile can carry W76 warheads with a yield of 100 kilotons or W88 warheads with a yield of 475 kilotons [1] - The effective payload capacity of the Trident II (D5) is up to 2.8 tons [1]

Core Viewpoint - The U.S. Navy successfully conducted a test of four unarmed Trident II (D5) ballistic missiles from an Ohio-class submarine, aimed at verifying the reliability of the weapon system, with no connection to current international events [1][3]. Group 1: Missile Test Details - The missile test took place from September 17 to 21 in waters near Florida [1][3]. - The Trident II (D5) missile was developed in the 1980s and underwent a life extension upgrade in 2017 to extend its service life into the 2040s [3]. - The missile can carry W76 warheads with a yield of 100 kilotons or W88 warheads with a yield of 475 kilotons, with a maximum payload capacity of 2.8 tons [3]. Group 2: Deployment and Historical Context - Both the U.S. and the U.K. deploy the Trident missile on their Ohio-class and Vanguard-class submarines [3]. - A previous test of the Trident missile by a British submarine resulted in a failure, which was confirmed by the U.K. Ministry of Defence, emphasizing the continued reliability of their nuclear deterrent despite the incident [3].