MOSCOW, April 17 (UPI) -- Two years ago Tehran officially declared the first batch of low-enriched uranium required for the production of fuel for nuclear reactors had been produced at the Natanz nuclear facility in Isfahan.

This memorable day is annually celebrated in Iran as the National Day of Nuclear Technology, which fell on April 8 this year.

This Nuclear Day has now become international. The Iranian nuclear program has divided the world community into two parts; some countries believe in the right of any nation to develop its own nuclear technologies, whereas others insist on their absolute transparency. As a result, the former support Iran's nuclear ambitions, whereas the latter doubt that Tehran's nuclear program is strictly civilian.

The Iranian issue has become so urgent that from December 2006 to March 2008 the U.N. Security Council adopted three resolutions on Tehran's nuclear program. It imposed sanctions against Iran, and then toughened and extended them. Some Iranian nuclear experts are barred from foreign countries, accounts of a number of Iranian companies and banks have been frozen, and shipments are subject to inspection.

Each resolution gave Iran 90 days to come to its senses, curtail its nuclear program and return to the negotiating table. A special U.N. Security Council committee was supposed to monitor the sanctions against Iran in relation to its nuclear activities.