Capture4The Ministry of Defence has been forced to request US military assistance to track a suspected Russian submarine off the coast of Scotland. Two US Navy aircraft have been conducting anti-submarine patrols in the north Atlantic this week on the trail of a Russian vessel in the area. A Royal Navy frigate has also been dispatched. It is believed the Russian presence could be linked to the reported departure of one of the Royal Navy’s Vanguard-class nuclear submarines from Faslane naval base at Gare Loch on the River Clyde. Vanguards carry Trident ballistic missiles. Two American P3 Orion maritime patrol aeroplanes were called in to fill what defence experts described as a “gaping chasm” in Britain’s anti-submarine capability following the scrapping of the RAF’s £4bn fleet of Nimrod surveillance aircraft in 2010. Angus Robertson, the Scottish National Party’s defence spokesman and MP for Moray, said the US deployment showed that Britain had resorted to going to its allies with a “begging bowl” More