An American missile defense system was used for the first time to intercept a retaliatory attack launched by Yemen’s Houthis rebels at Israel’s central airport overnight as threats continue to escalate between the Jewish state and Iran’s terror proxies.

An advanced U.S. military anti-missile system was used in Israel to try to intercept a projectile for the first time since President Joe Biden placed the system in Israel in October, a source familiar with the matter told Reuters on Friday.

The Houthis have ramped up their attacks on Israel, while Israeli leader Benjamin Netanyahu says the fight against the militant group “is only getting started.”