Tens of thousands have been killed in one year of war across multiple fronts.
Israel is marking the first anniversary of Hamas' Oct. 7 attack as its Lebanon operation continues and leaders consider their response to Iran's latest long-range missile attack.
Hundreds of Iranian missiles were fired into the country last week, according to Danny Danon, Israel's ambassador to the United Nations.
Iran said the unprecedented attack was retaliation for a wave of assassinations carried out by Israel over the last several weeks targeting Hezbollah, including leader Hassan Nasrallah.
Most of the missiles were intercepted, but "several hits were identified, and the damage is being assessed," an Israeli security official said.
Tune in to ABC News Live at 4 p.m. and 8:30 p.m. on Monday, Oct. 7, for "Oct 7th: Race to Survive" -- special coverage of the anniversary of the conflict. Veteran correspondent Matt Gutman highlights voices of Israelis and Palestinians impacted by the war and the ongoing humanitarian crisis in Gaza.
Following a large blast in Beirut Sunday, the Israel Defense Forces said fighter jets attacked Hezbollah intelligence headquarters in Beirut.
In addition, warplanes have recently attacked the organization's munitions warehouses in the Beirut area, the IDF said.
