The U.S. did not provide any assistance or have any involvement in the Israeli strike, a U.S. official told ABC News. ABC News' Chief Washington Correspondent Jonathan Karl spoke to President Donald Trump on the phone early Friday morning and asked him about the attack on Iran.

National security experts warn that Israel's attack on Iran shows why Chinese land and asset purchases in the U.S. pose a significant threat to American security.

Israel attacked Tehran early Friday and killed many of the country’s top military leaders and scientists. The United States said it was not involved in the strikes.

People who participated in negotiations with the United States on a nuclear deal on the part of Iran were killed as a result of an Israeli operation. This was reported by CNN correspondent Dana Bash with reference to US President Donald Trump.

Yechiel Leiter, Israeli ambassador to the United States, joins "CUOMO" to explain why Israel launched attacks on Iran and why it will not stop until it has eliminated Iran's nuclear infrastructure. #I

The United States is the main international backer of Israel, Iran's biggest regional foe. It is also a close ally of Sunni Gulf monarchies which for years pursued their own rivalry with the Islamic Republic, seeing it as their main regional threat.

A University of Toledo professor of political science says that although attacks like this can be unsettling, he does not see this escalating into a global war.

President Trump is trapped between the “America First” isolationists and others in his party who are cheering on Israel’s strikes against Iran.