MOSCOW, March 5 (Reuters) - Iran has not approached Moscow with a request for arms supplies, the Kremlin said on Thursday. Russia has condemned U.S.-Israeli strikes and called for an immediate ceasefire against a country it has drawn closer to in recent years.Iran last year sealed a 20-year strategic partnership agreement with Moscow, Russia is building two new nuclear units at Bushehr, the site of Iran's only nuclear power plant, and Iran supplied Russia with shahed drones for use against Ukra...