A new attempt was made at the IDEF 2013 exhibition. Russia presented its Ka-50-based Ka-52 Alligator attack helicopter and the Mi-28NE Night Hunter. The proposal to start joint development of a surface-to-air missile system with Ankara was perhaps the most intriguing development of IDEF 2013. The SAM would be based on the Russian S-300V Antey-2500 system. Besides the Antey, Moscow has offered the Buk-M2E and the Tor-M2E surface-to-air missile system, and the Pantsir-S1 combined missile and artillery system. Exhibited mock-ups included the T-90S tank, Terminator fire support combat vehicle, the BMP-3M infantry combat vehicle, the BTR-80 and the BTR-80A Armored Personnel Carriers, the Smerch multiple rocket launcher, the Kornet and the Metis-M anti-tank missile systems, the Msta-S 152-millimeter howitzer, the 2S9 120-milemeter self-propelled mortar, and the Vena self-propelled automated artillery system.