Houthis Open a New Front Against Israel as 3,500 US Marines Arrive in the Middle East

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Yemen’s Houthi movement has entered the regional war by firing a barrage of ballistic missiles at Israel, its first such attack since the United States and Israel began striking Iran in late February. The launches coincided with the arrival in the Middle East of a large American amphibious force, underlining how far a conflict that began with strikes on Iranian territory has now spread across the region.

Brigadier General Yahya Saree, the Houthi military spokesman, said the group had fired a salvo of ballistic missiles at what he described as sensitive Israeli military sites in southern Israel. The Israeli military has reported intercepting missiles launched from Yemen. Until that point Yemen had stayed out of the war between Iran and the United States and Israel, despite the movement’s long-standing alignment with Tehran.

On the American side, US Central Command announced the deployment of a task force of roughly 3,500 Marines and sailors aboard the amphibious assault ship USS Tripoli. The vessel had been conducting exercises in the waters near Taiwan when the order to redeploy was issued, an unusual reassignment that indicates the priority Washington attached to reinforcing its regional posture. An earlier order had directed some 2,500 Marines and an amphibious assault ship to the region roughly two weeks into the conflict.

American military officials have discussed the possibility of missions involving special operations forces inside Iran, according to reporting on the deployment, though it is not clear that President Donald Trump has approved any such operation. Amphibious ready groups of this kind provide a range of options short of a full ground campaign, including the evacuation of citizens, the reinforcement of embassies and the security of naval facilities, and their arrival does not by itself indicate that a ground operation has been decided upon.

The war began on 28 February with American and Israeli strikes on Iranian targets. The fighting has since expanded well beyond the initial exchanges, drawing in armed groups aligned with Tehran and prompting Gulf states that are not parties to the conflict to activate their air defences against missiles and drones crossing their airspace. The Houthi decision to open a front against Israel marked a further widening of that pattern.

For the Houthis, the move fits a strategy pursued since 2023, when the group began attacking commercial shipping in the Red Sea and firing at Israel in connection with the war in Gaza. Those campaigns brought the movement a degree of international prominence disproportionate to its resources and allowed its leadership to present itself as a regional actor rather than a party to a Yemeni civil war. Entering the confrontation with Israel at this stage extends that positioning.

The military logic is more constrained than the rhetoric. The distance between Yemen and Israel is close to two thousand kilometres, and the great majority of projectiles launched over that range in previous rounds have been intercepted or have fallen short. The practical effect has been disruption rather than destruction, forcing air raid alerts and the closure of airspace. What the launches achieve is political visibility and a demonstration that Israel can be reached from a further axis.

The consequences inside Yemen are considerable. The country has endured more than a decade of war, and the humanitarian situation is among the most severe anywhere, with widespread food insecurity, a collapsed currency in Houthi-held areas and disrupted public services. Deeper involvement in a regional conflict exposes the population in areas the group controls to retaliation and complicates the work of aid agencies that must negotiate access with the authorities in Sanaa.

It also further reduces the prospects for the stalled Yemeni peace process. Talks brokered with Omani and Saudi involvement had at earlier points appeared close to producing a roadmap covering salary payments, port and airport access and a framework for wider negotiations. Each escalation has pushed those discussions further from resolution, and the movement’s entry into the confrontation with Israel and its subsequent operations against Saudi Arabia have made a return to that agenda more difficult.

The internationally recognised Yemeni government has used the escalation to press its long-standing argument that the Houthi movement functions as an extension of Iranian policy and that regional security requires strengthening state authority across Yemen. Officials in Aden and Riyadh have repeated that case in international forums, seeking to link maritime and regional security concerns to support for the government.

What follows depends principally on decisions taken outside Yemen. The scale of the American deployment gives Washington options across a wide spectrum, and the Houthi leadership has shown a consistent willingness to absorb military pressure without altering course. For Yemenis, the immediate consequence is that a country already at the centre of one of the world’s worst humanitarian emergencies has been drawn into a broader war whose terms are being set elsewhere.

The pattern since has been one of steady widening rather than sudden rupture. In the months after entering the confrontation, the movement declared a maritime blockade on Saudi Arabia in July and claimed attacks on Saudi-linked tankers and on Aramco installations at Jizan and Yanbu, while Saudi forces struck Houthi-held Hodeidah in return, according to the group’s media. Each step has been announced by Saree in the same format of televised statements, giving the campaign a deliberate public rhythm that serves recruitment and morale as much as any battlefield objective.