SOCHI. Nov 29 (Interfax) - The supply of S-400 systems to military units is going according to plan, Russian President Vladimir Putin said.
"The air-defense junctions and military units are going over to the S-400 systems according to plan. Another two regiment sets are to be provided to troops this year and another three will be provided in 2014," Putin said at a meeting on the development of the aerospace defense system.
Putin called this rate of work "good," adding that he is hoping it will continue.