Less than three weeks ago, Israeli Prime Minister Benjamin Netanyahu sat beside President Joe Biden and marveled that a "historic peace between Israel and Saudi Arabia" seemed within reach — a diplomatic advance that he predicted could lead to lasting peace between the Israelis and Palestinians.

Biden was equally optimistic, telling Netanyahu during their meeting in New York, "If you and I — 10 years ago — were talking about normalization with Saudi Arabia, I think we'd look at each other like, 'Who's been drinking what?'"

Israeli warplanes pounded downtown Gaza City, home to Hamas' centers of government, with relentless bombardments into early Tuesday, after Israel's prime minister vowed retaliation against the Islamic militant group that would "reverberate for generations."

The 4-day-old war has already claimed at least 1,600 lives, as Israel saw gun battles in the streets of its own towns for the first time in decades and neighborhoods in Gaza were reduced to rubble. Hamas also escalated the conflict, pledging to kill captured Israelis if strikes targeted civilians without warning.

A senior Hamas official has said only a small number of top commanders inside Gaza knew about the wide-ranging incursion launched into Israel, but that allies like Iran and Hezbollah "will join the battle if Gaza is subjected to a war of annihilation."

Ali Barakeh, a member of Hamas' exiled leadership, spoke to The Associated Press in his Beirut office as Israel bombarded Gaza and vowed a total blockade of the Hamas-ruled territory.

Families in several border towns in southern Lebanon have started fleeing north as Israeli shelling continues in the area.

An Associated Press team saw several cars packed with people and belongings departing Monday. “We tried to flee Aita el-Shaab to Rmeish, but they told us everyone has to stay in their area,” a man said as he and his family tried to flee.

Former President Donald Trump and other GOP contenders tried to lay blame on the Biden administration after Hamas militants launched the deadliest attack on Israel in decades, citing a $6 billion transfer to Iran that administration officials insisted Saturday had yet to be spent.

Hamas' surprise early morning attack during a major Jewish holiday Saturday marks a new foreign policy front in a presidential election that has already been unusually dominated by foreign affairs. Russia's ongoing invasion of Ukraine has divided the Republican field, with some like Trump and Florida Gov. Ron DeSantis questioning the U.S.'s continued involvement, while others like former Vice President Mike Pence insist that supporting the Ukrainian military is vital to U.S. national security interests.

Less than a two-hour drive from where families sleep in tents and earthquake rubble remain in piles, the world's most powerful financial institutions are gathering for a week of discussions on economic challenges during times of war, inequality and climate change.

The International Monetary Fund and World Bank decided in 2018 to host their annual meeting in Marrakech, Morocco, bringing the affair to the African continent for the first time in 50 years.

For Palestinians in Gaza, Israel's eyes are never very far away. Surveillance drones buzz constantly from the skies. The highly-secured border is awash with security cameras and soldiers on guard. Intelligence agencies work sources and cyber capabilities to draw out a bevy of information.

But Israel's eyes appeared to have been closed in the lead-up to an unprecedented onslaught by the militant Hamas group, which broke down Israeli border barriers and sent hundreds of militants into Israel to carry out a brazen attack that has killed hundreds and pushed the region toward conflict.

There will be only one winner in the war that has broken out between Israel and the Palestinian militant group Hamas. And it is neither Israel nor Hamas.

In an operation coined "the Al-Aqsa Storm," Hamas, whose formal name is the Islamic Resistance Movement, fired thousands of rockets into Israel on Oct. 7, 2023. Hamas and Palestinian Islamic Jihad fighters infiltrated Israel by land, sea and air. Hundreds of Israelis have been killed, more than 2,000 injured, and many taken hostage.

The evacuation warning came shortly after dark. The Israeli military fired the shot just a short distance from Nasser Abu Quta's home in the southern Gaza Strip, a precautionary measure meant to allow people to evacuate before airstrikes.

Abu Quta, 57, thought he and his extended family would be safe some hundred meters (yards) away from the house that was alerted to the pending strike. He huddled with his relatives on the ground floor of his four-story building, bracing for an impact in the area.

Crude oil prices surged and world share prices were mostly lower on Monday after the Israeli government declared war following deadly attacks by Hamas from the Gaza Strip.

U.S. futures declined. The bond market in the U.S. will be closed Monday for the Columbus Day holiday, but the New York Stock Exchange and Nasdaq will be open.