US President Donald Trump has threatened to attack a site linked to Iran's nuclear programme known as Pickaxe Mountain (Kuh-e Kolang Gaz La in Persian), a fortified facility buried deep underground near one of Tehran's main nuclear sites. The threat reflects escalating tensions as Tehran and Washington trade fire in the Gulf, setting back efforts to end the conflict. Here is what we know about Pickaxe Mountain: What is Pickaxe Mountain? Pickaxe Mountain is located 220 kilometres south of Tehran and 2km from the Natanz nuclear complex. The Natanz site, where two of Iran's uranium enrichment plants were located, was bombed during the war started by the United States and Israel on February 28, and during last year's 12-day war. The tunnel facility under construction at Pickaxe Mountain was not targeted in either of those wars, according to the Institute for Science and International Security (ISIS), a US-based think-tank focused on nuclear non-proliferation....
Iranian drone attacks on CIA facilities in the Gulf have prompted US intelligence analysts to investigate whether Russia assisted by providing targeting information or advanced drone technology, said four people familiar with US intelligence. These people, who spoke on condition of anonymity to discuss national security matters, said US intelligence officials have not yet reached firm conclusions about the possible Russian involvement in the attacks on CIA facilities. But they cited the strikes' effectiveness and apparent precision, as well as Russia's broader technical support for Iran, as possible evidence. Reuters and other media have reported — and US officials have acknowledged — that Russia has provided targeting and other support for Iran in its strikes on US targets in the Gulf region generally, but the intelligence community's investigation of possible Russian involvement in supporting the CIA facility attacks has ...