Russian Defense Minister Sergei Shoigu, center, the head of General Staff, Gen. Valery Gerasimov, left, and the head of the main directorate of combat training Lieutenant-General Ivan Buvaitsev head an operation during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. Russia has deployed cruise missiles, multiple rocket launchers, tanks and its latest anti-aircraft system at massive military drills in Crimea. The drills which began across southern Russia and Crimea earlier this week and involve over 120,000 troops are some of the largest exercises Russia has held for years. (Photo by Pavel Golovkin/AP Photo)





Russian navy ships and military paratroopers take a part in a landing operation during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. (Photo by Pavel Golovkin/AP Photo)





Russian military helicopters and troops take a part in a landing operation during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. (Photo by Pavel Golovkin/AP Photo)





Russian navy ships and a helicopter take a part in a landing operation during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. (Photo by Pavel Golovkin/AP Photo)





Russian military Su-34 bombers fly during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. (Photo by Pavel Golovkin/AP Photo)





A tank rolls out from a ship on a landing operation during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. (Photo by Pavel Golovkin/AP Photo)





Russian military helicopters and tanks take a part in a landing operation during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. (Photo by Pavel Golovkin/AP Photo)





Russian soldiers carry their equipment during military drills at the Black Sea coast, Crimea, Friday, September 9, 2016. (Photo by Pavel Golovkin/AP Photo)





Russia's navy ships take part in a military exercise called Kavkaz (the Caucasus) 2016 at the coast of the Black Sea in Crimea on September 9, 2016. The country is staging war games on land, air and sea in manoeuvres across Russia’s entire southern military district on the border of Ukraine. Russia annexed the Crimean peninsula from Ukraine in April 2014 and since then has sent thousands of troops and heavy weaponry there. Today it flexed its muscles by inviting media and international military officials to watch as thousands of soldiers performed tank battles and amphibious landings. Helicopter gunships and missile batteries repelled a mock invasion from the sea and the whole exercise involved more than 120,000 troops. (Photo by Vasily Maximov/AFP Photo)





Russia's servicemen take part in a military exercise called Kavkaz (the Caucasus) 2016 at the coast of the Black Sea in Crimea on September 9, 2016. (Photo by Vasily Maximov/AFP Photo)





Russia's navy ships and helicopters take part in a military exercise called Kavkaz (the Caucasus) 2016 at the coast of the Black Sea in Crimea on September 9, 2016. (Photo by Vasily Maximov/AFP Photo)





Russia's navy ships and military jets take part in a military exercise called Kavkaz (the Caucasus) 2016 at the coast of the Black Sea in Crimea on September 9, 2016. (Photo by Vasily Maximov/AFP Photo)





Russia's military jets and navy ships take part in a military exercise called Kavkaz (the Caucasus) 2016 at the coast of the Black Sea in Crimea on September 9, 2016. (Photo by Vasily Maximov/AFP Photo)





A Kamov Ka 52 Alligator helicopter during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)





Mil Mi-8 transport helicopters during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)





Sukhoi Su-34 strike fighters during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)





A thermobaric bomb explosion during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)





Mil Mi-8 transport helicopters during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)





A T-90 tank during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)





Mil Mi-35 attack helicopters during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)





An Ilyushin IL-76MD military transport aircraft during the Caucasus 2016 strategic drills at Opuk range of Russia's Southern Military District. (Photo by Sergei Savostyanov/TASS via Getty Images)