Houthi gains test Trump’s limits on US military involvement and ties with Saudi Arabia

The Houthis' recent advances along Yemen's Red Sea coast signify a substantial escalation in the ongoing conflict with Iran. However, US President Donald Trump has thus far refrained from escalating US military involvement in the region. Following the Houthi seizure of the strategic port city of Mokha and their subsequent missile and drone strikes on Saudi Arabia, Trump resisted Saudi Crown Prince Mohammed bin Salman's pleas for US intervention.

Instead, Washington provided intelligence support, as reported. Trump acknowledged the Houthi's desire to avoid a direct confrontation with the US, stating that they "would much prefer not having us involved". The administration maintains constant communication with Saudi Arabia, the UAE, and other regional partners, while also engaging in direct conversations with the Houthis.

Vice President Kamala Harris affirmed the administration's belief that they are "on top of the situation," noting the dynamic and fluid nature of the crisis. The administration's cautious approach stems from its reluctance to engage in another military front while US forces remain focused on Iran and the Strait of Hormuz. The US confronts challenging decisions as the war with Iran persists and the crisis surrounding the Strait of Hormuz remains unresolved.

Trump is also under pressure from rising energy prices, which exacerbate the cost of living for Americans ahead of the November midterm elections. The conflict's goals and duration, which Trump initially projected as a short campaign to change Iran's regime, have dragged on for over six months. The objective of reopening the Strait of Hormuz, through which a fifth of global energy supplies once flowed, has become a paramount US concern.

Trump has traditionally emphasized his strong connections with Gulf states, particularly Saudi Arabia. His inaugural foreign trip after taking office led him to the kingdom, Qatar, and the UAE; however, signs of strain have emerged. The US decision to initiate the war with Iran without prior consultation with Gulf states has left regional countries grappling with the economic and security ramifications of a conflict they did not provoke.

The Trump administration made the civil nuclear agreement with Saudi Arabia contingent upon the establishment of formal ties with Israel. In a gesture likely intended to appease Riyadh, Trump nominated a new ambassador to Saudi Arabia on Monday, a position vacant for over a year and a half. The administration has yet to appoint ambassadors to the UAE, Qatar, or Kuwait.

For Gulf states that have invested decades in strengthening their security and economic ties with Washington, the conflict has underscored their limitations in safeguarding their economies from regional instability and their influence within Washington. "The Gulf states are rightly furious, and they should be, because they have become victims of something that was not their doing," commented Alex Vatanka, a senior fellow at the Middle East Institute.

"They do not see any solutions emerging from Washington, so they are accepting the geography and the basic realities of this war becoming an attrition conflict, in which the Gulf states are among the most significant casualties." The Houthi capture of Mokha, Yemen's western coastal city, brings them nearer to the Bab Al Mandeb strait, a crucial global shipping route linking the Red Sea and the Gulf of Aden.

This strait has gained strategic significance due to the significant disruption in traffic through the Strait of Hormuz during the war. Bab Al Mandeb serves as one of the few major maritime pathways connecting the Gulf to the Red Sea and the Gulf of Aden. The Houthi acquisition represents a significant strategic advantage, granting them control over an essential alternative shipping route.

Iran stands to gain from the instability in Yemen, as disruptions could inflict additional economic pressure and generate another political challenge for Trump. While Iran and the Houthis share clear interests, Tehran does not necessarily dictate Houthi decision-making. A senior US administration official affirmed that Washington remains focused on safeguarding its core national security interests, including the freedom of navigation in the Red Sea, while striving to empower regional partners to tackle security challenges.

The administration has also cautioned the Houthis against resuming attacks on shipping, warning that the US would take "necessary action" to protect freedom of navigation and commercial shipping.