Iran's supreme leader vows to keep up fight against Israel

Ayatollah Ali Khamenei's rare address comes as Israel weighs retaliation for attack

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Iran's supreme leader vowed in a rare address on Oct. 4 that his allies around the region would keep fighting Israel, as he defended his country's missile strike on its arch-foe.

Ayatollah Ali Khamenei's address in Tehran was the first since Iran launched its second-ever attack on Israel, and also the first since exchanges of fire pitting Hezbollah fighters against Israeli troops escalated into full-blown war in Lebanon.

Nearly a year after Palestinian militant group Hamas launched the deadliest attack on Israel in its history on Oct. 7, Israel announced it was shifting its focus to securing its border with Lebanon.

Israel says its objective is to allow 60,000 Israelis displaced by a year of cross-border rocket attacks launched by Hezbollah to return to their homes.

Israel's attacks on Hezbollah strongholds around Lebanon have killed more than 1,000 people since Sept. 23, according to the Lebanese Health Ministry, and forced hundreds of thousands more to flee their homes in a country already mired in economic crisis.

They have also killed a host of Hezbollah commanders, an Iranian general and, in their biggest blow to the group in decades, assassinated its leader Hassan Nasrallah.

Talking to a crowd of thousands in Farsi-speaking Iran, he said in Arabic: "The resistance in the region will not back down with these martyrdoms, and will win."

The address comes as Israel weighs retaliation for Hezbollah backer Iran's missile attack, which Tehran said was revenge for the killing of Nasrallah and other top figures.

Mr. Khamenei, with a rifle by his side as he addressed worshippers, praised Hezbollah, saying that it was providing "a vital service to the entire region and the entire Islamic world".