On 19 October 2023, the U.S. Navy warship USS Carney shot down three land-attack cruise missiles and several drones heading toward Israel launched by the Houthis in Yemen. This was the first action by the U.S. military to defend Israel since the outbreak of the war. It was later reported that the ship shot down four cruise missiles and 15 drones. Another missile was reportedly intercepted by Saudi Arabia.
On 27 October 2023, two drones were fired in a northerly direction from the southern Red Sea. According to IDF officials, their target was Israel, but they did not cross the border from Egypt. Of the two drones, one fell short and hit a building adjacent to a hospital in Taba, Egypt, injuring six; the other was shot down near an electricity plant close to the town of Nuweiba, Egypt. A Houthi official later made a one-word post on Twitter after the drone crashed in Taba, mentioning the nearby Israeli town of "Eilat".
On 31 October, an alert was triggered in Eilat, Eilot and the Shahorit industrial park area regarding the penetration of hostile aircraft from the Red Sea. The aircraft was successfully intercepted over the Red Sea. The Arrow system intercepted a ballistic missile and the Air Force intercepted several cruise missiles fired from the Red Sea towards Eilat. The Houthis took responsibility for the launches. One cruise missile was shot down by an F-35i Adir jet. The downing of the missile by the Arrow marks the first time it has been used in the Israel–Hamas war.
On 1 November at 0:45, the IDF intercepted an air threat fired from Yemen and identified south of Eilat.
A U.S. MQ-9 Reaper drone was shot down off the coast of Yemen by Houthi air defences on 8 November; the Pentagon previously claimed MQ-9 drones were flying over Gaza in an intelligence gathering role to aid in the hostage recovery efforts.
On 9 November, the Houthis fired a missile towards the city of Eilat. The missile was intercepted by an "Arrow 3" missile, marking the first time it was used in an interception.
On 14 November, the Houthis fired numerous missiles, one of which was aimed towards the city of Eilat. The missile was intercepted by an Arrow missile.
The following day, the USS Thomas Hudner shot down a drone that was headed towards it.
Why won't Israel take a more aggressive measure against the Houthis in Yemen? It seems that Israel is just shooting down missiles and drones while not attacking the Houthis in Yemen. Is there a reason for this? I am thinking that attacking terrorists in Yemen would constitute perhaps a war against Yemen itself even if the government of Yemen is against the Houthis. Did Israel give an official reason for not attacking the Houthis for their involvement in the Israel-Hamas war?