This image dated Friday April 28, 2006, from the Israeli spy satellite Eros B, and made available by the Israeli company ImageSat International NV, on Sunday April 30, 2006, one of the first high-quality images reported to show the Kassala airport in southern Sudan. The Eros B was launched last week from Russia and will remain in orbit for up to 6-years with the purpose to track Iran's nuclear program at a time when Tehran is refusing to comply with U.N. demands to halt uranium enrichment and Iranian President Mahmoud Ahmadinejad is calling for Israel's destruction. (AP Photo/ImageSat)
Iranian president Mahmoud Ahmadinejad. Iran cannot be forced to halt its disputed nuclear programme and will defy any UN Security Council resolution demanding a freeze of uranium enrichment, the country's top national security official has said.(AFP/File/Atta Kenare)