A US submarine has sunk the Iranian warship IRIS Dena in the Indian Ocean, leading to heightened tensions between Iran and the US, as well as complicating US-India relations. The attack, which resulted in the deaths of 84 Iranian sailors, has sparked a fierce debate over the legality and morality of the strike under naval warfare laws. Iran has vowed revenge and condemned the US actions, while Sri Lanka is set to repatriate the remains of the sailors. The US government has faced scrutiny regarding its decision not to rescue any survivors, further escalating concerns about the impact of this conflict on regional stability. The incident marks the first time a US submarine has sunk an enemy vessel since WWII, igniting fears of an expanded war in the Middle East.