Israel-Gaza updates: 22, including 18 children, reported dead in Rafah strikes
The IDF says it struck military targets of terrorist organizations in Gaza.
Israel launched a retaliatory strike against Iran early Friday morning local time, a senior U.S. official told ABC News.
The strike followed Iran's attack on Saturday, when Tehran sent a volley of more than 300 drones and missiles toward targets in Israel, according to Israeli military officials. All but a few were intercepted by Israel and its allies, including the United States, officials said.
Iran's weekend attack came more than six months after Hamas terrorists invaded Israel on Oct. 7, after which the Israeli military began its bombardment of Gaza.
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What to know about Iran's attack on Israel
Israeli officials said the country's Iron Dome defense system endured a big test from Iran's attack on Saturday, intercepting 99% of the 300 "threats of various types" thrown at it.
Iran's Islamic Revolutionary Guard Corps, according to Israel Defense Forces spokesperson Daniel Hagari, launched 170 unmanned aerial vehicles (UAVs), more than 120 ballistic missiles and more than 30 cruise missiles in the attack.
Hagari said "99% of the threats launched towards Israeli territory were intercepted -- a very significant strategic achievement."
Hagari said the attack resulted in only one known Israeli casualty, a 7-year-old girl who was severely injured when she was struck by shrapnel apparently from an intercepted missile.
Biden: We 'defeated' Iran
President Joe Biden on Monday touted the "unprecedented military effort to defend Israel" against Iran, declaring "together with our partners we defeated that attack."
In his first on-camera remarks since this weekend's Iranian strike, the president stressed that "the United States is committed to Israel's security."
"We're committed to a cease-fire that will bring the hostages home and preventing the conflict from spreading beyond what it already has" the president told reporters in the Oval Office ahead of his meeting with the Iraqi prime minister. "We are also committed to the security of our personnel and our partners in the region, including Iraq."
'Majority' of intel came from coalition partners ahead of attack: Israeli Air Force official
A senior Israeli Air Force official said that the normalization of relations with Middle Eastern countries "served us during this crucial time" this weekend.
"It has to be clear that real assets" provided Israel with "information" and an "early warning," and the "majority" of that intelligence came from the coalition, the senior Israeli Air Force official said at a Monday briefing.
In terms of the types of drones and missiles used by Iran in the Saturday night attack, the official said Israel did not face any types of missiles that it had not shot down during attacks in recent months by Iranian proxies.
The official confirmed that only "a handful" of ballistic missiles fired by Iran were not intercepted.
"Five, more or less, managed to penetrate," the official said.
He said Israel's "strategic investment" in air defense capabilities, made years ago, had paid off, and called Israel shooting down nearly all missiles a "historic success."
The official was asked if Israel would be able to withstand a similar level of attack from Iran, without the support of allies such as the U.S.
"It would be more challenging,” the official conceded, but added that Israel has capabilities "to face this kind of challenge."
-ABC News’ Tom Soufi Burridge
Iran 'not the power it purports to be,' White House adviser says
Israel on Saturday demonstrated its "military superiority" against Iran while also showcasing its partnership with military allies, including the United States, John Kirby, spokesperson for the White House National Security Council, said Monday.
Israel said Sunday about 99% of the missiles and drones launched by Iran were intercepted by Israel and its allies, a defense that Kirby called a "tremendous success."
"I think it did show, did demonstrate that Iran is not the power that it purports to be, that it doesn't have that same military superiority," Kirby said on "Good Morning America."
Israeli Prime Minister Benjamin Netanyahu is expected on Monday to reconvene his war cabinet, a body that met on Sunday without deciding on a response to Iran's attack. And President Joe Biden and his G7 counterparts on Sunday released a statement urging Iran to cease its attacks.
"With its actions, Iran has further stepped toward the destabilization of the region and risks provoking an uncontrollable regional escalation," the G7 leaders' statement said. "This must be avoided."
The United States would not participate in an Israeli response, if the country decides to strike back against Iran, U.S. defense and security officials said on Sunday.
But the final decision on whether Israel strikes back will fall to Netanyahu, Kirby said Monday.
"The president was also clear, as he has been throughout, that we do not seek a wider war in the region and we don't seek conflict with Iran," he said.
-ABC News' Kevin Shalvey
Israeli war cabinet to reconvene Monday to consider response
Israeli Prime Minister Benjamin Netanyahu is expected on Monday to meet with his war cabinet to discuss potential responses to Iran’s attack.
The cabinet had convened on Sunday, but ended their meeting without making a final decision about a response to Iran’s attack, a person with knowledge of the meeting told ABC News.
The cabinet members include Defense Minister Yoav Gallant and Benny Gantz, a former minister of defense.
-ABC News’ Joe Simonetti, Jordana Miller and Kevin Shalvey
Israeli Defense Minister responds to potential US sanctions on IDF battalion
Israel's Minister of Defense Yoav Gallant held a discussion with IDF Chief of the General Staff Lt. Gen. Herzi Halevi regarding the developing report on U.S. intentions to impose sanctions against the IDF’s Netzach Yehuda battalion, an Israeli military unit operating in the West Bank.
"Any attempt to criticize an entire unit casts a heavy shadow on the actions of the IDF, which operates to protect the citizens of Israel," Gallant said in a statement. "Damage to one battalion, affects the entire defense establishment – this is not the right path for partners and friends."
Gallant urged the U.S. not to impose sanctions on the unit.
"Our friends and our enemies are closely watching the ties between Israel and the United States, now more than ever," Gallant said. "I call on the U.S. Administration to withdraw its intention to impose sanctions on the Netzach Yehuda battalion."
Amid reports of possible sanctions, Gallant recently completed a call with U.S. Secretary of State Antony Blinken. Earlier today, Minister Gallant also held a discussion with the U.S. Ambassador to Israel, Jack Lew.
-ABC News' William Gretsky