Vladimir Putin, Russia's president, has welcome the nuclear deal with Iran, saying that with the deal signed "the world can breathe a sigh of relief".
The deal will see an easing of sanctions on Iran, including a UN arms embargo and ban on Tehran's ballistic missile programme, an advantage to Russia which is keen to sell arms to Iran.
Sergei Lavrov, Russia's foreign minister who has been involved in the nuclear talks, said that after the deal arms deliveries to Tehran would be possible if approved by the UN Security Council.
He also said Russia was counting on the United States carrying out a promise, which he said it had made in 2009, not to deploy missile defence systems in Europe once a nuclear deal was reached with Iran.,
Prime minister Netanyahu has likened the nuclear deal with Iran to the unsuccessful 1994 deal on North Korea's nuclear programme.
An end to Iranian nuclear question could soon be a reality after years of hard and often tense negotiations.