Yemen Closer to All-Out War Than Any Point Since 2022 Truce, UN Warns

Yemen is closer to renewed all-out war than at any point since the UN-brokered truce of April 2022, according to UN Special Envoy Hans Grundberg, who briefed the Security Council on Thursday amid intensifying clashes across multiple front lines.

Grundberg told the Council that military activity has escalated across Yemen in recent days, with attacks producing both military and civilian casualties. Fighters from the Iran-aligned Houthi group have clashed with Yemeni government forces in Marib, Hadramout, al-Makha (Mocha), and elsewhere. The Aden-based internationally recognised government reported repelling a Houthi assault on Taiz. On Wednesday, government forces said they had carried out artillery and drone strikes against Houthi positions across several governorates. Also on Wednesday, the head of Yemen's Presidential Leadership Council declared that every Houthi action would be met with a comprehensive response or deterrence.

The warning from Grundberg is not new in its substance but is acute in its timing. On 10 August, the envoy had already cautioned that Yemen faced a greater risk of renewed large-scale conflict than at any point since the truce (UN press release). Reuters reported on 13 August that the UN judged the escalation to threaten the fragile truce between the Houthis and the internationally recognised government. By Thursday, that assessment had hardened, with Grundberg telling Council members the country stands closer to the brink than at any moment in the truce's lifespan.

The 2022 truce was a landmark two-month agreement that has since been renewed and has largely held. Progress toward a lasting settlement stalled in 2023 as regional tensions escalated. Yemen's conflict began in 2014 when the Houthis seized the capital Sanaa, prompting a Saudi-led military intervention the following year. The UN estimates that 377,000 deaths occurred between 2015 and early 2022, with roughly 60 percent attributed to indirect causes such as food insecurity (Council on Foreign Relations).

Grundberg called on the parties to immediately de-escalate and work toward a robust ceasefire, a formulation that goes beyond the informal understanding sustaining the current truce. He urged the warring parties to cooperate on practical measures: ensuring commercial vessels can reach Yemeni ports, resuming oil exports, and restarting commercial flights to Houthi-held Sanaa airport. These were among the economic provisions that the 2022 truce partially addressed but never fully implemented.

Grundberg also warned that renewed Houthi attacks on shipping in the Red Sea risk drawing Yemen into the wider regional confrontation between the United States and Iran. That linkage between the internal Yemeni conflict and the broader US-Iran friction has been a persistent feature of the war's trajectory, and the envoy's decision to name it directly before the Council elevates the stakes of the current escalation beyond Yemen's borders.

The humanitarian dimension is deteriorating in parallel. UN humanitarian chief Tom Fletcher told the Security Council that more than half of Yemen's population lacks reliable access to sufficient food, with six million people facing emergency levels of deprivation bordering on famine. Fletcher also reported that three women die every day from preventable pregnancy-related complications.

The British government placed blame squarely on the Houthis. Sarah MacIntosh, the UK's permanent representative at the UN, told the Council that "reckless Houthi" actions are responsible for Yemen's humanitarian crisis, criticising the group's attacks on international shipping and direct strikes on Saudi Arabia. The framing from London aligns with the positions of Western and Gulf states that have sanctioned and militarily targeted Houthi assets over the Red Sea campaign.

The Council held its 10208th meeting on Yemen, at which an ambassador warned that the country is at risk of spiraling backwards. The UN-brokered truce, while never formalised into a permanent ceasefire, has been the single most effective constraint on violence since the war's most intense phase. Its erosion would reopen a conflict that has already produced one of the world's worst humanitarian emergencies.

What remains unclear is whether external actors with leverage over either side will intensify pressure for de-escalation or allow the truce to lapse entirely. The envoy's appeal for practical economic measures reflects an understanding that the truce's survival depends not only on a cessation of fire but on tangible benefits that give both parties an incentive to maintain it. With the Presidential Leadership Council publicly committing to a deterrence posture and Houthi forces pressing front-line offensives, the space for diplomatic traction is narrowing.