JERUSALEM — Elite Israeli forces conducted a dramatic raid in Syria, destroying a secret underground long-range missile factory that also contained information about Syria's chemical weapons program in September, according to the Israel Defense Forces (IDF).

The IDF first revealed the mission Thursday in a call with reporters.

"This is one of our most significant and complex special operations in recent years, even in this complex year and a half," IDF spokesperson Nadav Shoshani said.

The IDF provided spectacular footage of the Israeli commandos during the daring mission as well as the massive explosion of the subterranean complex after the troops had cleared it.

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"The precision-guided missile factory or facility was dug into the side of a mountain underground," the IDF spokesperson said.

Information about Syria’s chemical weapons program was uncovered during the mission. 

"I have seen some of them — notebooks and documents — and a lot of them contain very specific chemicals,"  Shoshani said. "One of them that I saw was a chemical handbook that describes how to manufacture a missile at the end of the raid. The troops dismantled the facility, including the machines and the manufacturing, to ensure the safety of Israel."

Assad’s regime repeatedly used chemical weapons on his population during the nearly 14-year civil war that ripped apart the country. The U.S.-designated terrorist movement Hezbollah played a key role in aiding Assad’s regime during the civil war.

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The factory was designed to manufacture between 150-350 missiles a year, including precision-guided missiles (PGM), according to the IDF. Commandoes from the IDF’s elite air force unit Shaldag participated in the mission. The IDF said 30 Syrian soldiers were killed during the operation.

The IDF spokesperson told reporters the operation "was aimed at an Iranian-funded precision-guided missile factory inside Syrian territory near the border with Lebanon. This facility was designed to manufacture hundreds of strategic missiles per year from start to finish for Hezbollah to use in their aerial attacks on Israel and for its Iranian axis in Syria.

"Because of the specific terrain and this facility being underground, we could not operate from the air area. Also, on Sept. 8 last year, 2024, special forces conducted a nighttime targeted raid on the facility. This raid involved over 100 soldiers. There were also dozens of aircraft, including helicopters and other types of aircraft. The forces were flown in by helicopters."

"I salute our heroic fighters for the daring and successful operation deep in Syria," Israel Prime Minister Benjamin Netanyahu said in a statement. "This was one of the most important preventive operations that we have taken against the efforts of the Iranian axis to arm itself in order to attack us; it attests to our boldness and determination to take action everywhere to defend ourselves."

After the devastating Oct. 7, 2023, Hamas invasion of Israel, which resulted in the murder of more than 1,200 people, including 40 Americans, Israel has faced multi-prong attacks from Iran’s regime — the main sponsor of Hamas, Hezbollah; the Houthis; and the toppled Bashar Assad regime in Syria.

Amit Segal, chief political analyst of Israel's Channel 12, told Fox News Digital, "The Israeli perspective for years was that Iran operates as an octopus in the Middle East, with the head being the nuclear program in Tehran and the arms being the conventional terrorist organizations surrounding Israel. Netanyahu’s view was that the arms were meant to harass and occupy Israel while the head raced toward nuclear capability, and therefore it was preferable to contain them and focus on the main threat.

"This perception shattered on Oct. 7 when it became clear that the arms were not just a nuisance but an existential threat."

The complex commando raid on the underground Syrian factory could also be a shot across the bow for the Islamic Republic of Iran’s nuclear weapons facilities embedded in mountains.

"After a year and a quarter dedicated to severing the octopus’s arms, Israel stands in 2025 at a historic crossroads for the confrontation Netanyahu has long sought and for which history will judge him: eliminating the nuclear threat once and for all," Segal noted.

The IDF spokesperson said construction on the Syrian missile factory "began at the end of 2017 and ended in 2021 when manufacturing machinery was sent from Iran to the site. Most of the components in the factory were sourced from Iran."

From October 2023 to November 2024, Hezbollah launched over 17,000 projectiles toward Israel, killing dozens of Israelis, the IDF spokesperson said.