The Russian Federal Security Service (FSB) denounced last Thursday that the Britain's Special Boat Service (SBS) had been operating in Ukraine and assisting Ukrainian forces in carrying out attempted actions against Russian forces.
The SBS served in some of the biggest conflicts of the last 70 years, including the Korean War, Northern Ireland, the Malvina Islands War, Sierra Leone, Afghanistan and Iraq.
It is a special forces regiment of the British Navy whose history dates back to the early days of World War II.
For this reason, the President of Russia, Vladimir Putin, stated that there are already NATO military personnel in Ukraine.