Lebanon has submitted two separate complaints to the United Nations Security Council, opening a new front in its diplomatic campaign against what it calls grave violations of international law by Israel. The first, dispatched on 10 June, accuses the Israeli military of spraying the herbicide glyphosate across three southern border villages in February, a month before the latest Israel–Hezbollah war erupted. The second, sent a day later, protests an Israeli strike on a Lebanese army vehicle on 6 June that killed two officers and a soldier, arguing such attacks undermine fragile regional diplomacy.

Viewed from Beirut, the glyphosate complaint carries strong symbolism. Soil samples gathered by Lebanon’s National Council for Scientific Research from Aita al-Shaab, Ras Naqura and Dhayra revealed concentrations as high as 22.75 micrograms per gram — more than ten times the maximum typically found after direct agricultural use. This, officials say, indicates deliberate, large-scale application incompatible with any farming purpose. Lebanon insists such use of herbicide as a method of warfare is prohibited under the Chemical Weapons Convention, though Israel is not a signatory to that treaty. Analysts in London note the legal ambiguity, yet stress the political weight of labelling Israeli actions as chemical warfare in a region already inflamed by conflict.

The second complaint shifts focus to direct military hostilities. On 6 June, Israeli forces targeted a Lebanese army vehicle on the Kafr Tibnit – Khardali road, killing a brigadier general, a captain and a conscript. Beirut’s foreign ministry called the attack a stark violation of UN Resolution 1701 and warned that targeting the national army “undermines diplomatic efforts” — an allusion to ongoing mediation by Washington and Paris aimed at restoring calm along the Blue Line. Diplomats in New York report that the two letters will likely be discussed under “any other business” in closed consultations, with a unified response unlikely given the Security Council’s enduring divisions on the Israel–Lebanon file.

Together, the filings underscore Lebanon’s strategy of seeking international condemnation while its own military remains deliberately sidelined from direct confrontation between Israel and Hezbollah. Yet the tactic faces a grim reality: the March 2026 war has deepened mutual distrust, and the distinction between state and non-state actors along the border is increasingly blurred. With agricultural land rendered unusable and military casualties mounting, the complaints also serve a domestic purpose — showing a beleaguered public that the state is acting. Whether they alter behaviour on the ground remains highly uncertain, but they ensure the optics of war are now firmly embedded in the language of international humanitarian law.