Vice President Kamala Harris said Iran was the U.S.' greatest adversary, while Tehran warned anew that it was “prepared for any scenario” and that any Israeli attack would be met with stronger retaliation.

Israeli Defense Minister Gallant was to meet with U.S. Defense Secretary Austin in D.C. on Wednesday, but the trip has been postponed at the request of Prime Minister Netanyahu

“If I had been valued a little more — not much, just a little — maybe it could have ended differently,” Roni Lifshitz, one of the former observers, told NBC News last month.

Harris observed the somber occasion at the Naval Observatory in Washington, while Trump participated in a remembrance in Miami this evening.

As Israel weighs its response to Iran’s ballistic missile attack, CIA Director William Burns said Monday that there is a “very real danger of a further regional escalation of conflict.”

A year after the Hamas-led terrorist attacks and Israel's ensuing assault on the Palestinian enclave, the world is confronting the threat today of spiraling conflict in the Middle East.

The lives of hundreds of thousands of children have been shattered during Israel’s yearlong military offensive in Gaza. NBC News spoke to some of them, as well as doctors and aid officials.

In the anguish of the last 12 months, families of the more than 250 hostages taken during Hamas’ terrorist attack have often turned to rituals for comfort and purpose.

The vice president is in need of allies in a community that remains frustrated with the administration's handling of the Israel-Hamas war.

Hopes for peace have been shredded by a spiraling conflict that has brought the Middle East to the edge of all-out war.