US President Joe Biden said the move was meant "to
defend Israel," which is weighing an expected retaliation against Iran
after Tehran fired more than 180 missiles at Israel on October 01.
The United States has been privately urging Israel to
calibrate its response to avoid triggering a broader war in the Middle East,
officials say, with Biden publicly voicing his opposition to an Israeli attack
on Iran's nuclear sites and his concerns about a strike on Iran's energy
infrastructure.
Pentagon spokesperson Major General Patrick Ryder described
the deployment as part of "the broader adjustments the US military has
made in recent months" to support Israel and defend US personnel from
attacks by Iran and Iranian-backed groups.
But a US military deployment to Israel is rare outside of drills,
given Israel's own military capabilities. US troops in recent months have aided
Israel's defense from warships and fighter jets in the Middle East when it came
under Iranian attack.
But they were based outside of Israel.
The Terminal High Altitude Area Defense system, or THAAD, is
a critical part of the US military's layered air defense systems and add to
Israel's already formidable anti-missile defenses.
A THAAD battery usually requires about 100 troops to
operate. It counts six truck mounted launchers, with eight interceptors on each
launcher, and a powerful radar.
Iran's Foreign Minister Abbas Araqchi warned earlier on
Sunday that the United States was putting the lives of its troops "at risk
by deploying them to operate US missile systems in Israel."
"While we have made tremendous efforts in recent days
to contain an all-out war in our region, I say it clearly that we have no red
lines in defending our people and interests," Araqchi posted on X.
Still, experts say Iran has sought to avoid a direct war
with the United States, making deployment of U.S. forces to Israel another
factor in its calculus going forward.
Iran launched missiles and drones at Israel in April. Then
on October 01, Iran fired more than 180 ballistic missiles at Israel amid another
escalation in fighting between Israel and Iran-backed Hezbollah in Lebanon.
Many were intercepted in flight but some penetrated missile defenses.
US officials did not say how quickly the system would be
deployed to Israel.
The Pentagon said a THAAD was deployed to southern Israel
for drills in 2019, the last and only time it was known to be there.
Lockheed Martin, the biggest US arms maker, builds and
integrates the THAAD system, which is designed to shoot down short-, medium-
and intermediate-range ballistic missiles. Raytheon, under RTX, builds its
advanced radar.
Israel, Iran, Lockheed Martin, Raytheon, THAAD system,