Cold War Revival? British Military on QV

UK's Ministry of Defence says that warship HMS Dragon & an RAF Typhoon aircraft have been in contact with their Russian counterparts this week, as follows:

The Royal Navy’s 'fleet ready' escort HMS Dragon, a Type 45 destroyer, pinpointed and monitored the movement of the Russian destroyer Vice Admiral Kulakov as it transited past the UK coast.
 
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.

The commanding officer of HMS Dragon, Captain Iain Lower, said:
"For a mission like this, it is not about sending any ship; we need speed, we need endurance, and, as the weather can be atrocious, sea-keeping is all-important."

In the air
The Royal Air Force was also involved recently with its Russian counterparts when RAF Typhoon Quick Reaction Alert (QRA) aircraft were launched from RAF Leuchars to determine the identity of unknown aircraft that were approaching the Nato air policing area north of Scotland.

The aircraft were identified as Russian military aircraft carrying out a routine training sortie in international airspace.

MOD explains that RAF QRA aircraft are launched to intercept unidentified aircraft when they cannot be identified by any other means. This means that the aircraft is not talking to civilian or military air traffic control, has not filed a flight plan, and is not transmitting a recognisable secondary surveillance radar code.