Israel's air force achieved a "remarkable feat," said William Freer, a research fellow for national security at the U.K.-based Council on Geostrategy.

Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

This is the second time President Trump and Russian President Vladimir Putin have spoken on the phone this month.

During a meeting with Canadian Prime Minister Mark Carney, President Trump confirmed he had seen signals that Iran is willing to talk and could work towards de-escalation amid their conflict with Israel.