"Russia intercepts UK warplanes and recon plane over Black Sea, while UK scrambles jets 21 times in response to Russian aircraft."
Two Russian Su-27 fighter jets intercepted an RC-135 electronic reconnaissance aircraft and two Typhoon fighter jets of Britain’s Royal Air Force over the Black Sea to prevent a violation of the state border. The RC-135’s primary mission is signals intelligence, where it collects and processes various types of electronic signals for strategic and tactical purposes. The interception was carried out in strict accordance with international rules for the use of airspace over neutral waters without crossing air routes or dangerously approaching aircraft of a foreign state.