 These twenty-year-old aircraft – which had not been flown for a decade and required work to re-certify their flightworthiness – were delivered in September 2005.The Su-25 receipt was also originally mis-reported as an acquisition of ten Su-27 air superiority fighters, an aircraft the Slovak Air Force never operated.Also in 2004, Armenia received a pair of L-39C trainers from each of Russia and the Ukraine, as well as two Il-76 transports from Russia in May.