Russia has supplied 15 batteries of S-300 long range surface-to-air-missile systems to China, ITAR-TASS reported Friday. According to an official with the national defense sector this is an unprecedented contract both in terms of sales volume and in numbers of serial production. He added that such an ambitious task has been implemented within a given term. All the supplied S-300 systems will be used for the defense of the Chinese cities of Beijing and Shanghai. An upgraded S-300 surface-to-air missile system is capable of hitting ballistic short range missiles and also fixed land targets.