New targets appear to indicate an expansion of Israel’s war aims beyond the Iranian nuclear facilities that consumed the first days of the conflict.

“We are here because we are in the midst of an existential struggle, that all Israeli citizens understand,” said Netanyahu on Sunday afternoon in the central Israeli city of Bat Yam.

That surprise strike hit the heart of the Iran's nuclear program, killing several nuclear scientists as well as high-ranking military leaders, according to Israeli officials.The U.S. did not provide any military assistance or have any involvement in Israel's Friday strike,

President Donald Trump rejected Israel's proposal to assassinate Iran’s Supreme Leader Ayatollah Ali Khamenei, a U.S. official told NBC News.

Israel said hundreds of airstrikes over the past two days killed nine senior scientists and experts involved in Iran’s nuclear program, in addition to several top generals.