 Complete the following phrase:  While forces from the Ministry of Interior are often involved in locating spies and saboteurs, the Spetsnaz units of the Ministry of Defense have been more directly involved in the war. Perhaps the most well known are the Spetsnaz units responsible for defending Donetsk International Airport. The Airport was raided on April 18, but maintained operations until May 25, 2014 after which it faced nearly daily attacks. The 3rd Separate Spetsnaz Regiment have earned the nickname Cyborgs and has been involved in the 