well Iran has just run out of luck, Russia put a stop on selling mighty air defence missiles to Iran after...
"...Russia has close trade ties with Iran and is building its first nuclear power plant. It has worked with China, another veto-wielding Security Council member, to water down four packages of sanctions adopted against Tehran since 2006.
However, it has become exasperated with Iran's restrictions on U.N. nuclear inspections and its refusal to accept Russian-backed proposals to help dispel suspicions about its nuclear program..."
http://www.reuters.com/article/idUSTRE6575A820100611