Russia- second largest arms dealers

http://rt.com/usa/news/arms-supplies-iraq-afghanistan/

This multibillion dollar deal was announced hours ago, it seems russia is back on the path to international arms dealers. Second in the world to only america, russian weapons will now be facing off against american soldiers. Its almost a little bit nostalgic at this point. But seriously How can people sell guns to a country and then go in a fight a war with them. Now for those younger readers, this is nothing new, the former USSR and USA have been the world leaders in weapons supply to developing nations for years. Now i wonder who iraq biggesr supplier is?

Some more, less publicized news from russia is they will also be supplying machinery to Syria as well.
http://www.rnw.nl/english/bulletin/maliki-russia-huge-arms-deal-syria-agreement

I wonder what will happen once the arms dealers start requiring customer loyalty. world war three anyone?