VIENNA, September 10. /TASS/. Western countries proved to be incompetent in the implementation of the Joint Comprehensive Plan of Action (JCPOA) on the Iranian nuclear program and thereby undermined the nuclear nonproliferation regime, Russia’s Permanent Representative at International Organizations in Vienna Mikhail Ulyanov said on Wednesday.

"When considering statements made by Great Britain, Germany, France and the United States it becomes quite obvious that Tehran previously implemented in full everything they are demanding right now from Iran. Then what did they miss back then? The answer is simple - they missed contractual capacity," Ulyanov stated speaking at the IAEA Board of Governors meeting.

The West is now demanding that Iran "renounce its legitimate right to enrich uranium under the Nuclear Non-Proliferation Treaty," he continued.

"The fact that ten years after the JCPOA came into force and the set targets stipulated by it were not implemented in full is the result that first the United States and then the European trio deliberately sabotaged the implementation of the agreement," the Russian diplomat noted.

According to him, they "preferred the futile path of maximum pressure on Tehran to the principles of gradually building trust."