Southern Lebanon is undergoing a shift from a traditional peacekeeping framework to a more complex security system, where the Lebanese state, international actors, and new verification mechanisms can share responsibility for achieving and maintaining security. The June 2026 Trilateral Framework Agreement and the August 2026 Rome talks may provide the political start point for this shift, but they don’t determine its outcome. The crucial question is whether the emerging system can establish a sustainable security, or whether the region will remain involved in an externally managed deterrence system.
The United Nations Interim Force in Lebanon (UNIFIL)/UN Security Council Resolution 1701 framework provides the institutional basis for the current transition, but its peacekeeping model was not designed to independently enforce a comprehensive disarmament process or to compel the state to dismantle deeply entrenched non-state actors. Accordingly, its limitations were structural as it couldn’t guarantee exclusive state control over weapons, prevent the rebuilding of non-state actors armed capabilities, or resolve compliance disputes. Consequently, the challenge for the new security architecture is not simply to replace UNIFIL, but to establish mechanisms capable of performing functions that the previous framework could not fully provide.
The signing of the U.S.-supported Trilateral Framework Agreement between Israel and Lebanon on 26 June 2026 appeared, at first sight, to open a path toward a comprehensive peace agreement through ending Israeli military operations in Lebanon and restoring Lebanese sovereignty. However, continued ceasefire violations, the delay in the Israeli withdrawal, and Hezbollah’s refusal to disarm have created obstacles to comprehensive peace in Lebanon. With talks in Rome between Lebanon and the United States in August, expectations have emerged that a genuine negotiation process may begin, potentially helping shape the security order in southern Lebanon.
The question of a new security order is becoming increasingly important in light of recent developments, such as discussions over the establishment of U.S.-backed “pilot zones,” the expansion of the Lebanese Army’s deployment, the future of the UNIFIL, as well as discussion of new international mechanisms to monitor and enforce security arrangements. Accordingly, the future of southern Lebanon should not be viewed as a binary choice between Hezbollah and the Lebanese state. Rather, the indicators point to the emergence of three competing security models that could replace the existing security model. The question becomes whether southern Lebanon is moving toward a state-led security system, an internationally supported security framework, or a retreat from the security developments on the ground, with prolonged managed deterrence continuing to prevail.