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Hizbullah Announces Intent to Retaliate If Iran Is Attacked by U.S. and Israel

The Iranian terror proxy’s current posture suggests a more calibrated approach, synchronized with Iran.
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Hizbullah Secretary-General Sheikh Naim Qassem
Hizbullah Secretary-General Sheikh Naim Qassem. (Hamed Malekpour/Wikimedia)

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Summary

Hizbullah’s leadership has signaled opposition to any U.S. or Israeli attack on Iran while carefully avoiding a commitment to immediate or full-scale war.

Its stated red line centers on direct threats to Iran’s Supreme Leader, framing any response as self-defense.

Despite ideological alignment with Iran and rhetoric rooted in Shiite concepts of sacrificial struggle, Hizbullah faces serious military and political constraints after recent losses and an existing ceasefire.

As a result, its likely approach would be limited and calibrated actions rather than an all-out confrontation, coordinated with Iran’s broader regional strategy.

In his speech on January 26, 2026, Hizbullah Secretary-General Naim Qassem used the phrase, “We will not be neutral,” in reference to a potential U.S. and Israeli attack on Iran. While this language may sound like a declaration of war, several important caveats merit attention.

Qassem emphasized that Hizbullah would decide “how to act at the appropriate time,” deliberately avoiding any explicit commitment to an immediate or full-scale military response. He further narrowed Hizbullah’s stated red line by linking its concern specifically to threats against Iran’s Supreme Leader, Ayatollah Ali Khamenei, describing any harm to him as an “assassination of regional stability.” Qassem also portrayed Hizbullah as being “targeted” by the same aggression directed at Iran, thereby framing any prospective action as self-defense rather than an unprovoked “support front.”

In practice, Hizbullah faces two major hurdles in 2026 should it choose to formally join an Iranian war effort:

  1. The 2024 conflict significantly degraded Hizbullah’s mid-level command structure and military infrastructure. Although the organization has since managed to reorganize, mobilize new recruits, restructure its command echelon, redeploy units along the Israeli front, and reopen weapons production facilities, the adoption of a new “support front,” similar to the one launched in the aftermath of Hamas’s murderous attack on October 7, 2023, would carry a serious risk of total organizational collapse.
  2. Violating the U.S.-brokered ceasefire would likely provoke a massive Israeli response, one accompanied by stronger domestic consensus within Israel and broader international legitimacy than in previous rounds of fighting, particularly given Israel’s likely objective this time: the destruction of the Shiite proxy’s remaining military power.

This assessment, that Hizbullah’s decision to join Iran in a future war effort is likely in terms of intent, is consistent with the organization’s raison d’être, which is closely tied to the survival of the Iranian regime. At the same time, Qassem’s rhetoric can be understood as an exercise in “deterring Israel and the U.S. by speech.”

Moreover, it aligns with the “Karbala syndrome,” an ideological framework rooted in Shiite notions of self-sacrifice dating back to the 680 AD battle in which Hussein, the Prophet Muhammad’s grandson, knowingly fought, and was killed, with a small group of family members against the vastly superior Umayyad army. Within this worldview, the inevitability of defeat does not preclude action.

Accordingly, based on Qassem’s repeated declarations about acting against Israel even at the cost of certain loss, echoing the outcome of Karbala, it appears that Hizbullah’s strategic decision has effectively been made and that it received official Iranian approval during the visit of Iran’s foreign minister, Araghchi, to Lebanon in early January 2026.

That said, Qassem’s numerous statements also indicate that Hizbullah has no intention of initiating a direct confrontation with Israel. Rather than automatically opening a high-intensity “support front” involving sustained rocket fire, Hizbullah’s current posture suggests a more calibrated approach, likely synchronized with Iran’s broader management of its regional proxies. For Hizbullah specifically, this points toward “calculated intervention” – engagement in “gray zone” activities or limited strikes designed to distract or pressure Israel, while stopping short of an all-out war that could extinguish what remains of the organization’s Lebanese stronghold.

FAQ
Does this position mean Hizbullah is declaring war?
No. The language signals intent and alignment but avoids committing to immediate or comprehensive military action.
What is Hizbullah’s main red line in this context?
Direct harm to Iran’s Supreme Leader, which it portrays as a threat to regional stability.
Why is Hizbullah constrained militarily in 2026?
Recent conflicts weakened its command structure and infrastructure, making large-scale war risky for organizational survival.
How would violating the ceasefire affect Hizbullah?
It would likely trigger a strong Israeli response with greater domestic and international backing than in past confrontations.
What kind of actions are most likely from Hizbullah?
Limited, calculated interventions or gray zone activities designed to apply pressure without provoking a full-scale war.

Col. (ret.) Dr. Jacques Neriah

Col. (ret.) Dr. Jacques Neriah, a special analyst for the Middle East at the Jerusalem Center for Security and Foreign Affairs, was formerly Foreign Policy Advisor to Prime Minister Yitzhak Rabin and Deputy Head for Assessment of Israeli Military Intelligence.
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