Iran has in turn said it will not let any attack by Israel go unanswered.
The Pentagon said the Thaad deployment “underscores the United States’ ironclad commitment to the defense of Israel, and to defend Americans in Israel, from any further ballistic missile attacks by Iran”.
The US sent a Thaad battery to the Middle East after Hamas attacked southern Israel on 7 October last year. It previously sent a Thaad battery to Israel in 2019 for training and an air defence exercise.
But the US deploying a crew to Israel is more rare.
Iran said its 1 October missile barrage was a response to Israel’s assassinations of the Hezbollah leader Hassan Nasrallah and a senior Iranian Revolutionary Guards Corps (IRGC) officer in Beirut, and of the Hamas leader Ismail Haniyeh in Tehran.
Israel has dramatically escalated its campaign against Iran-backed Hezbollah in recent weeks, carrying out deadly air strikes across southern and eastern Lebanon and in parts of Beirut.
Before that, Israel and Hezbollah had been trading cross-border fire on a near daily basis since last October, when Hezbollah began firing into Israel which it said was a show of support for Palestinians in Gaza. It had said it would stop firing if there was a ceasefire in Gaza.
However, international efforts to get Israel and Hamas to agree to a ceasefire in Gaza have so far failed.
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