The Royal Navy has sent a Portsmouth-based warship to track a Russian naval vessel as it approached British waters, it has been revealed.

HMS Dragon, a Type 45 destroyer, tracked and met up with the Vice Admiral Kulakov, a large Russian destroyer, as it sailed past the UK.

http://www.portsmouth.co.uk/news/def...ters-1-6017646

Dragon deployed from Portsmouth last week to pre-position well north of Scotland in good time to respond to the Udaloy-Class destroyer’s deployment. She made contact with the Kulakov and is keeping an eye on the Russian ship’s transit south.
http://www.marinelink.com/news/milit...ish367789.aspx