Israel-Gaza-Lebanon live updates: 20 dead in Israeli strike on school, ministry says

On Monday, U.S. Army leaders said the deployment of a Terminal High Altitude Area Defense (THAAD) battery to Israel will include approximately 100 soldiers to operate it.

"The THAAD deployment is going to have about 100 soldiers who will go over to Israel," Christine Wormuth, the secretary of the U.S. Army said at the Army’s annual AUSA conference.

Wormuth did not provide operational or timing details about the deployment of the THAAD system or its deployment for security and force protection reasons.

"I think we should view this THAAD deployment as for what it is, which is another visible statement of our commitment to the security of Israel as it deals with everything that's coming at it from Hamas and Hezbollah in Lebanon," said Wormuth.

A U.S. official told ABC News that discussions about deploying the THADD system to Israel in order to shore up its defenses against ballistic missile barrages have been underway for months.

-ABC News' Luis Martinez and Shannon Kingston

Thirty trucks carrying flour and food entered Gaza on Monday, according to Coordinator of Government Activities in the Territories (COGAT), the Israeli agency that oversees logistical coordination within the Gaza Strip.

This aid was meant for northern Gaza, COGAT said. However, a spokesperson for the World Food Programme told ABC News it has not yet reached the people there.

"Israel is not denying the entry of humanitarian aid, with an emphasis on food, into the Gaza Strip," COGAT said in response to an inquiry from ABC News.

-ABC News' Jordana Miller and Guy Davies

Samer Abu Daqqa, the head of Hamas' Aerial Unit, has been killed, the Israel Defense Forces claimed in a statement Monday.

Abu Daqqa was killed during an Israeli airstrike in September, the IDF said, but did not say where the attack took place.

After several members of the U.N. Interim Force in Lebanon were injured in airstrikes, Israeli Prime Minister Benjamin Netanyahu denied that the Israel Defense Forces was intentionally attacking the peacekeepers.

"The charge that Israel deliberately attacked UNIFIL personnel is completely false. It's exactly the opposite," Netanyahu said in a statement. "Israel repeatedly asked UNIFIL to get out of harm's way. It repeatedly asked them to temporarily leave the combat zone, which is right next to Israel’s border with Lebanon."

Netanyahu said he regrets "any harm done to UNIFIL personnel" and claimed the IDF was "doing its utmost to prevent such incidents."

"But the best way to assure the safety of UNIFIL personnel is for UNIFIL to heed Israel's request and to temporarily get out of harm's way," he said.