Iranian President Mahmoud Ahmadinejad said that the country would claim compensation for unilateral cancellation of S-300 missile system.

Ahmadinejad criticized Russia's unilateral cancellation of a defense agreement with Iran and said, "some countries thought that they can damage Iranian nation through illegal and unilateral cancellation of a defense deal."

"I proclaim that the contracts should be implemented, otherwise Iranian nation will claim compensation for lack of its implementation."

"Secondly, if you think that you can make Iranian nation yield to the US through annulment of sale agreement of some missiles, you need to know that our nation does not need your missiles, our nation with the help of its will creates a power which crushes you in your palaces."

He then reiterated that Iranian nation never backs down from its position on nuclear issue, ISNA reported.

The ban came following the order of Russian President Dmitry Medvedev to ban any military cooperation with Tehran based on UN Security Council's resolution No. 1929.