"Any movements in the area of creating such potential arms, of course make others concerned, and moreover make one suspect that Iran could possibly create nuclear arms," Russian Deputy Foreign Minister Alexander Losyukov said on Wednesday. "Long range rockets are a part of such systems. This of course makes us concerned," Loksyukov said.  And according to Col. Gen. Viktor Yesin, the former chief of General Staff of the Russian Strategic Missile Troops: "This achievement [the launch of the Explorer-1 rocket] has shown that Iranian specialists have become familiar with production of liquid-propelled rocket engines, which will also allow them in the long term to create ballistic missiles with a range of 3,500-4,000 kilometers or even more," Yesin said.