俄派潜艇为遭美拦截的油轮护航

Core Viewpoint - Russia has deployed a submarine and other naval forces to escort an oil tanker that was previously intercepted by the U.S. Navy near Venezuela, indicating a strategic military response to U.S. actions in the region [1] Group 1: Military Movements - A Russian submarine and additional naval assets are now providing protection for the oil tanker, which was originally named "Bella 1" [1] - The tanker successfully evaded U.S. personnel attempts to board and has since changed its name to "Mariner" and its registration to Russia [1] Group 2: Current Location and Trajectory - The oil tanker is currently located approximately 480 kilometers south of Iceland and is heading towards the North Sea [1]