By Michelle Nichols UNITED NATIONS (Reuters) – Russia is attempting to obtain more weapons from Iran, including hundreds of ballistic missiles, and offering Tehran an unprecedented level of military and technical support in return, Britain’s U.N. Ambassador Barbara Woodward said on Friday. Since August Iran has transferred hundreds of drones – also known as unmanned aerial vehicles (UAVs) – to Russia, which had used them to “kill civilians and illegally target civilian infrastructure” in Ukraine, Woodward said. “Russia is now attempting to obtain more weapons, including hundreds of ballistic m…