"...Officials said last month that Russia and Iran finalized the contract for their delivery.
The S-300 deal has long worried Israel and other countries in the region, as well as the U.S., which see it as destabilizing..."
Reference: www.washingtonpost.com
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Will Obama trade missile defense curbs for Russian arms cuts? "...Missile defense is an issue that has split Washington and Moscow for decades. And it is likely to remain a point of contention when President Obama visits Russia next week – despite the fact that Mr. Obama is less enthusiastic than his predecessor about US plans to erect missile defense facilities in Eastern Europe...."
Reference: www.csmonitor.com .