Israel sent troops into Lebanon as the U.S.-Israeli war with Iran widened, and some of Iran's Gulf neighbors warned that Iran's retaliatory fire could draw them into the spreading conflict.

The Trump administration has defended the war on Iran by arguing that the Middle Eastern country posed a significant threat to the United States. Officials argued that Iran was nearing the development of a nuclear weapon and ballistic missiles capable of reaching U.S. territory.

President Trump and top White House officials said the U.S.-Israeli war against Iran could last weeks and that the "hardest hits are yet to come."

President Trump takes questions from the press surrounding the unfolding conflict in the Middle East.

Israeli Prime Minister Benjamin Netanyahu has steered his country along two pillars of foreign policy throughout his political career.

The U.S. and Israel were striking Iran on Saturday morning, with Iranian media reporting explosions across the capital Tehran.

President Trump has made repeated vows to ensure that Iran can never obtain a nuclear weapon. And during the 12-day campaign last June against Iran, Israel and the United States smashed the site at Isfahan. The nuclear base’s main purpose was to convert uranium ore into a gas that could be enriched into nuclear fuel.

Donald Trump called on Iranians to overthrow their government as the US and Israel launched air strikes in what the president described as a “massive and ongoing operation” against the Islamic regime on Saturday morning.

The United States and Israel bombed Iran Feb. 28, with President Donald Trump accusing Iran of building nuclear weapons that threaten U.S. allies and could "soon" reach the U.S.