FILE - In this undated file photo S-300 air defense missiles are launched in Ashuluk shooting range in southern Russia. President Vladimir Putin said Tuesday June 4, 2013, that Russia hasn't yet ... more 
FILE - In this undated file photo S-300 air defense missiles are launched in Ashuluk shooting range in southern Russia. President Vladimir Putin said Tuesday June 4, 2013, that Russia hasn't yet fulfilled a contract to send sophisticated S-300 air defense missile systems to Syria to avoid tilting the balance of power in the region. Russian officials have acknowledged that Moscow signed a deal for the delivery of the powerful missiles a few years ago, but have been coy about whether any of them have been delivered. (AP Photo, File) less 
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Associated Press
Tue, Jun 4, 2013 11:39 AM EDT