MOSCOW, March 2 (Xinhua) -- U.S.-Israeli attacks on Iran disrupted efforts to facilitate a peaceful resolution to the Iran nuclear issue, Russian President Vladimir Putin said Monday.

In his phone call with the United Arab Emirates' President Sheikh Mohamed bin Zayed Al Nahyan, Putin said the "unprovoked act of armed aggression" against a sovereign United Nations member state violates the fundamental principles of international law.

The two presidents discussed the situation in the Middle East, the Kremlin's press service reported.

Both sides noted the need for a swift ceasefire and a return to the political and diplomatic process, it added.

The United States and Israel launched large-scale airstrikes against Iran on Saturday morning, prompting Tehran to retaliate with waves of missile and drone attacks on Israel and U.S. military bases in the Gulf region. ■