Yemen’s Houthi rebels are stepping up their missile attacks, keeping up what could be the last major front in the Middle East wars.

Israel launched a multi-wave attack across Yemen in retaliation for Houthi missile and drone strikes, the Israeli military confirmed Thursday.

The head of the World Health Organization said he was about to board a flight in the Yemeni capital when the airport came under bombardment.

Israel is signaling a wider campaign against Houthi militants in Yemen, a mountainous and impoverished country more than 1,000 miles from Israeli territory.

The Israel Defense Forces continues its intense airstrike and ground campaigns in Gaza, particularly in the north of the strip around several Palestinian hospitals.

The American strikes come amid an intensifying, parallel drive by U.S. ally Israel, which has launched its own series of airstrikes on Houthi targets in response to recent missile and drone attacks on Israel that, while mostly intercepted, have struck some civilian sites and have sent millions seeking regular refuge in bomb shelters.

Israel has severely weakened Hamas and Hezbollah. Now it's going after another member of Iran's so-called axis of resistance: the Houthi rebels of Yemen.

Israel’s military says it intercepted a missile fired toward the country by Yemen’s Houthi rebels. The attack set off sirens late Monday in central areas of Israel, including Tel Aviv.

A missile launched from Yemen triggered air raid sirens across central Israel sending millions of residents looking for cover for the second night in a row

An official says the Yemeni group will not stop until the war in Gaza ends, as Israel's PM says it is "just getting started".