In News:

The US pledged its THAAD missile defence system as well as several troops to Israel after Iran warned the country to not get involved.

In a new boost to Israeli forces, the United States will send a Terminal High Altitude Area Defence battery (THAAD) and troops to Israel amid its ongoing offensive against the Hezbollah.

THAAD battery:

1. The Terminal High Altitude Area Defence system (THAAD) is an American anti-ballistic missile defence system. It can shoot down short, medium and intermediate range missiles in it's sphere.
2. The THAAD has a “hit to kill” approach which blasts missiles as they before they enter their target zone during their descent.
3. The THAAD was developed by the US after their experience of Iraq's Scud missile attacks during the Persian Gulf War in 1991. Out of a total of 88 Scud missiles, Iraq fired 42 into Israel and 46 into Saudi Arabia, killing many American soldiers in barracks as well.
4. The first proposal for the THAAD was submitted to the US Defence Ministry in 1987 and a series of tests resulting in failures, finally led to a successful version in 1999.
5. In 2008, the US deployed an early missile warning radar, a part of the THAAD system to Israel. Similar deployments were also made in 2012 and 2019, aiding Israel's ability to emerge as a military power in the Middle East.