What to know

• Internewscast Internewscast Iran’s Revolutionary Guards said Tuesday that they had seized a US unmanned… This Post: Iran Says It Captured US Submarine Drone in Strait of Hormuz first appeared on InternewscastS1
• Iran's Revolutionary Guards said it had captured a US uncrewed submarine in the Strait of Hormuz, offering a rare glimpse into how underwater drones are being used in military operations.S2
• The US military is investing heavily in unmanned naval systems, including underwater and surface vessels, as it seeks cheaper ways to monitor vast areas of ocean, gather intelligence and track adversary ships and submarines without putting sailors at risk.S3