Launching weapons from within their territory forces adversaries to look not only outward but also inside for threats, one expert said.

They did not rule out a return to the negotiating track on Iran's nuclear program, a Kremlin spokesperson said.

Ukrainian President Volodymyr Zelenskyy says rising global oil prices following Israeli strikes on Iran will strengthen Russia by increasing its oil revenues, aiding its war effort in Ukraine.

Russian President Vladimir Putin held phone calls with Israeli Prime Minister Benjamin Netanyahu and Iranian President Masoud Pezeshkian on Friday after Israel pelted Iran with a series of strikes.

Iran launched dozens of ballistic missiles toward Israel on Friday night in retaliation for Israel's surprise attack early Friday. Israel struck at the heart of the Iran's nuclear program, killing several nuclear scientists as well as high-ranking military leaders, according to Israeli officials.

Russia and Israel have built a close political, economic and cultural relationship that helped them tackle delicate and divisive issues, including developments in Syria.

Donald Trump wrote on his social media platform Truth Social, "President Putin called this morning to very nicely wish me a Happy Birthday, but to more importantly, talk about Iran, a country he knows very well.

Israeli emergency services have said at least two people were killed in the strikes and dozens of people are injured.