Russia should honor a contract to sell a missile defense system to Iran and not bend to outside pressure, Iranian defense minister said in remarks published Thursday. Russia, which is under Western pressure to distance itself from Iran, has not followed through on proposals to supply high-grade S-300 air defense missiles. US Secretary of State Hillary Clinton praised Russia last month for not providing the arms to Iran, which is at odds with the West over its nuclear and missile programs. Israel says the S-300 systems could be used to defend Iranian nuclear facilities against potential air strikes. Iranian Defense Minister Ahmad Vahidi said Iran had a contract with Russia to buy the missile system. “In connection with the purchase of S-300, we have a contract with Russia and I do not think it would be suitable for Russia to be seen as an uncertain partner in the world,” Vahidi said in remarks published in Siyasat-e Rouz newspaper on Thursday. Moscow “should honor the contract and not be influenced by the Zionists ... of course we are hopeful the issue will be resolved as soon as possible,” Vahidi said. Iran usually refers to Israel as the “Zionist regime”. Vahidi's comments were initially carried by Iran's labour news agency ILNA. An influential Iranian parliamentarian, Alaeddin Boroujerdi, earlier this week also said Russia should keep its word on selling the missile system to Iran.