The United Nations Security Council’s unanimous decision on August 28, 2025, to extend and ultimately terminate the UN peacekeeping mission in Lebanon marks the end of an era and the beginning of a turbulent new chapter for the region. After nearly five decades of monitoring the so-called Blue Line between Israel and Lebanon, the UN Interim Force in Lebanon (UNIFIL) is now slated to wind down its operations by the end of 2026, with a full withdrawal planned for the following year. The move comes after years of mounting pressure from Israel and the United States, as well as shifting dynamics on the ground in southern Lebanon.
UNIFIL, first established in March 1978 after Israel’s initial invasion of southern Lebanon, has seen its mandate renewed annually ever since. Over the years, its mission has grown in both size and complexity, especially following the 2006 war between Israel and Hezbollah. According to UPI, the force ballooned to include between 10,500 and 10,800 peacekeepers from nearly 50 contributing countries, patrolling the border and attempting to enforce a fragile truce between the two sides.
The Security Council’s resolution, as reported by The Guardian and The Week, extends UNIFIL’s mandate for a final 16 months—until December 31, 2026—after which the mission will begin a yearlong, “orderly and safe” withdrawal of all personnel and equipment. By the start of 2028, the Lebanese government is expected to assume full responsibility for security in the south, a monumental task that has left many stakeholders anxious about the future.
“It was a complete success, especially given the U.S.’s high-stakes demands and Israel’s push to end UNIFIL’s operations immediately,” a French diplomatic source told UPI. France, which played a key role in founding the peacekeeping mission and led efforts to secure the extension, argued that the additional time was crucial for Lebanon’s army to prepare to take over. The source emphasized that the extension was meant to “recognize the value and importance” of UNIFIL’s role and to provide a “logical deadline” for its dismantling.
The United States, under both the Trump administration and its successors, has long viewed UNIFIL as ineffective. The Trump administration, in particular, described the mission as a “waste of money” and oversaw significant cuts to U.S. funding, according to Al Jazeera. In the wake of this criticism, the U.S. ambassador to the UN, Dorothy Shea, made it clear after the vote that this would be the last extension: “The United States notes that the first ‘i’ in UNIFIL stands for ‘interim’. The time has come for UNIFIL’s mission to end.”
Israel has also been a vocal critic, accusing the peacekeepers of being “toothless” and sympathetic to Hezbollah. Israeli officials, as cited by The New York Times, argue that UNIFIL has failed to adequately disarm the Iran-backed militant group, which has “long dominated” southern Lebanon. Israel maintains that the mission has allowed Hezbollah to rebuild its military infrastructure in violation of UN resolutions. During the 2006 conflict, Israeli forces even attacked UNIFIL positions, injuring peacekeepers in the process.
On the other side, Hezbollah and its supporters have often viewed UNIFIL with suspicion, seeing the force as an extension of Western interests in the region. According to The Guardian, residents loyal to Hezbollah in southern Lebanon have at times obstructed UN patrols, thrown stones at vehicles, and even physically confronted peacekeepers. Despite these tensions, the Lebanese government has relied on UNIFIL to help create a buffer zone with Israel and support its under-equipped army in reasserting control over the south.
The decision to end the mission comes at a particularly delicate moment. Tensions between Israel and Hezbollah escalated dramatically after October 8, 2023, when Hezbollah opened a support front for Gaza, sparking cross-border clashes and a devastating war in September 2024. The conflict resulted in the deaths of several top Hezbollah leaders and the destruction of much of the group’s military infrastructure. A ceasefire brokered by the U.S. and France on November 27, 2024, included terms for Hezbollah’s disarmament and Israel’s withdrawal from five strategic posts it still occupies. However, Israel has insisted on concrete disarmament steps before complying with the ceasefire’s requirements, while Hezbollah has rejected the disarmament plan outright.
“Such a U.S. plan, which includes procedural provisions, exceeded Resolution 1701 and further marginalized UNIFIL,” retired Lebanese Brig. Gen. Hassan Jouni told UPI. He noted that the peacekeeping force could not enforce the resolution or halt violations from either side. “Today, there is a clear international determination to resolve the situation in southern Lebanon—either by achieving stability in accordance with the U.S. plan or by resuming the cycle of violence to enforce a different form of stability.” Jouni added that Hezbollah is now “too weak, highly exposed and deeply wounded to wage war,” while admitting, “We should admit that we live today in an era of Israel’s military supremacy and despotism.”
For the Lebanese government, the Security Council’s resolution was a bittersweet victory. Prime Minister Nawaf Salam praised the decision, saying it “reiterates the call for Israel to withdraw its forces from the five sites it continues to occupy, and affirms the necessity of extending state authority over all its territory.” The Lebanese Army is expected to present a plan to disarm Hezbollah in a way that avoids direct confrontation and preserves civil peace, a task fraught with risk given the group’s entrenched position and well-armed nature.
European governments, including France and Italy, expressed concern about the withdrawal, warning that it could hamper the Lebanese Army’s ability to establish itself in the south. Without UNIFIL, Lebanon would lose an international “credible witness” to Israeli violations, as Jouni pointed out, and a key supporter in maintaining a fragile peace.
For many, the end of UNIFIL is about more than just Lebanon or the region. “This isn’t just about Lebanon or the region—it also relates to Russia, Ukraine and China ... as well as the fate of peacekeeping missions,” the French diplomatic source told UPI. The debate over UNIFIL’s future has become a proxy for larger questions about the UN’s role in global security and the limits of international intervention in entrenched conflicts.
As the countdown to UNIFIL’s withdrawal begins, all eyes are on Lebanon’s government and army. Will they be able to fill the vacuum left by the peacekeepers? Or will the end of this decades-long mission usher in a new era of instability and conflict along one of the world’s most volatile borders? Only time will tell, but for now, the Security Council’s decision has set the stage for a high-stakes transition in the heart of the Middle East.