The ongoing conflict has destabilized the Middle East and raised the stakes of a broader regional conflict drawing in wider geopolitical actors that could include the United States, Israel's main ally and Iran's longtime foe.

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. The U.S. did not provide any military assistance or have any involvement in the Israeli strike, a U.S. official told ABC News.