Op-Ed: Peace in Gaza May Not Mean Peace in the Red Sea

 

[By Matt Reisener]

Since October 2023, the Houthis, a Yemeni rebel group that seized control over much of the country over a decade ago, have waged a campaign against shipping vessels in the Red Sea, Bab al-Mandab Strait, and Gulf of Aden, attacking over 100 commercial maritime vessels. The Houthis have long cited Israel’s war in Gaza as the raison d’être for its campaign, claiming that the attacks on Israeli ships or any vessels conducting business at Israeli ports are intended to punish Israel for its role in the conflict. However, in the wake of the recent ceasefire in Gaza, one might reasonably expect these attacks to end, particularly since there has already been a decrease in the number of attacks conducted since the Houthis’ May 2025 agreement with the US to avoid targeting American vessels in exchange for an end to US airstrikes on Yemen. Houthi leader Abdul-Malik al-Houthi reportedly ordered a cessation of attacks on ships flying the Israeli flag or docking at Israeli ports, and the group’s message to Hamas’ Qassam Brigades indicating that its campaign against Israel is on hold has been interpreted by some as a sign that the Houthis are shifting their focus away from the Red Sea.

An end to Houthi attacks in the Red Sea would be a welcome development given how disruptive the campaign has been to global commerce. Traffic through the Suez Canal has decreased by roughly 50% due to concerns that ships will be targeted in the Red Sea. Many vessels have instead chosen to sail around the Cape of Good Hope, adding significant time and expense to their journeys and contributing to global inflation. Given that as much as 15% of global trade and 30% of global container traffic transits the Suez Canal yearly, the global impact of the Houthi attacks cannot be understated.

However, the Gaza ceasefire may not herald the return of safe and stable maritime commerce in the Red Sea. The ceasefire remains tenuous in the wake of Hamas’ attempt to reassert control in pockets of Gaza City, and both sides have already accused the other of violating the agreement. Countless potential pitfalls remain on the path to a permanent peace which could easily prompt the resumption of hostilities, including the return of the remains of the outstanding Israeli hostages, fate of Hamas, and Israel’s willingness to accept a Palestinian state. Even then, a peaceful resolution to the conflict in Gaza may be insufficient to permanently end the Houthis’ maritime attacks. The reason for this speaks to the Houthis’ underlying motivations behind their efforts to disrupt Red Sea commerce, which go beyond the group’s stated intent to destroy Israel and support the Palestinian cause.

The Houthis’ Red Sea attacks are primarily intended to address the legitimacy crises the group faces both domestically and abroad. While the Houthis succeeded in capturing Yemen’s capital city of Sana’a and forced the resignation of then-President Abdrabbuh Mansur Hadi, the group remains opposed by Yemen’s internationally recognized government and other armed groups such as the Southern Transitional Council and Yemeni National Resistance which control significant swaths of territory within the country.

Within Houthi-controlled territory, the group remains unpopular with much of the population due to its imposition of restrictive social control measures, the poor state of Yemen’s economy, endemic government corruption, and the Houthis’ struggles to pay public sector salaries. Internationally, Iran is the only country to recognize the Houthis as the legitimate ruling government of Yemen, and the group has been diplomatically and economically isolated from most of the global community.

Through this lens, the group’s campaign in the Red Sea can perhaps best be viewed as an effort to strengthen the image of the Houthis as a fully functional governing entity and a powerful geopolitical force capable of waging war against regional and global powers and single-handedly disrupting global commerce. While Houthi attempts at striking the Israeli mainland have been largely unsuccessful, the group identified attacks against maritime vessels as a more achievable means of inserting themselves into the broader conflict against Israel while also elevating their global threat profile.

This interpretation is further supported by the Houthis’ decision to offer “safe transit” waivers to ships hoping to transit the Red Sea without being targeted. To the Houthis, every shipping company that applies for such a waiver helps cement the perception of the Houthis as a legitimate governing authority. Similarly, securing a peace agreement with the United States served as a significant propaganda win for the Houthis, allowing them to portray themselves as a peer competitor of the Americans capable of inflicting enough damage on US interests to necessitate such a deal.

While the Houthis’ embrace of the Gaza War cause is consistent with the group’s prevailing pro-Palestinian and anti-Israeli beliefs, the Houthis also had several strategic reasons to tie their Red Sea campaign to this conflict. First, Houthi involvement in the Gaza War is one of the few policies undertaken by the group that has been widely popular due to the Yemeni public’s widespread opposition to Israel. While 2024 polling from the Sana’a Center for Strategic Studies shows that the Houthis themselves remain unpopular in Yemen, it also shows that the attacks themselves have produced positive feelings among Yemenis living in areas of Houthi, government, and divided control.

These maritime attacks lend credibility to the Houthis’ claims that they are waging war in support of Palestine on behalf of the Yemeni people, while Yemen’s internationally recognized government has been largely unable to criticize the Houthi campaign since doing so would lend credence to the Houthis’ portrayal of this government as a Western-backed puppet that represents foreign rather than domestic interests. The attacks have also been a boon for recruitment to the Houthi cause. The UN estimates that the number of Houthi fighters increased from 220,000 in 2022 to 350,000 in 2024, and successful propaganda campaigns centered around the Houthis’ war against Israel served a major driver of this increased recruitment. Every successful strike and foreign retaliation against the Yemeni homeland in response to these attacks risks producing a rally-around-the-flag effect that engenders greater public sympathy.

Additionally, the Houthis’ embrace of the Palestinian cause as a justification for its Red Sea attacks has helped deepen its partnership with Iran. Despite the Houthis’ growing capacity to manufacture weapons domestically, Iran remains an invaluable patron for the Houthis which has continued to supply the group with munitions, as evidenced by the Yemeni National Resistance Force’s interception of over 750 tons of Yemen-bound Iranian weapons in July.

Iran’s arming of the Houthis was originally intended to oppose the Saudi-led coalition’s efforts to topple the group and prevent Yemen from becoming a proxy state of Iran’s geopolitical adversaries. However, the Houthis’ willingness to wade into the Gaza conflict in opposition to another of Iran’s primary adversaries (Israel) has helped establish the Houthis as a reliable partner worthy of continued support at a time when Iran’s regional proxy network has been significantly degraded following its disastrous Twelve-Day War against Israel.

Furthermore, the Houthis have used the Gaza War as cover for their Red Sea attacks in part to undermine public perceptions of other regional Arab powers. While countries such as Saudi Arabia and the UAE are ostensibly supportive of the Palestinian cause, the Houthis have repeatedly highlighted that these states have proven unwilling to match that support with military action, drawing favorable contrasts between this perceived inaction and the Houthis’ successful maritime campaign. In doing so, the Houthis have sought to weaken regional opinion of the countries which once actively worked to topple them after their capture of Sana’a.

While the Houthis’ embrace of the Palestinian cause has been largely successful for the group, there is reason to believe they will continue to target commercial shipping interests in the Red Sea even if the conflict in Gaza remains frozen. First, the Houthis could continue to shift the goalposts on their justification for targeting vessels in the Red Sea in opposition to Israel. The road to peace between Israel and the Palestinians will be full of stops and starts, and the Houthis can weaponize each roadblock as a sign of Israeli aggression and resume their Red Sea attacks.

Should the fragile peace in Gaza hold, the Houthis could also adopt the United States as the primary public face of its Red Sea campaign, drawing on the broad unpopularity of the US among Yemenis in the wake of America’s lengthy drone campaign against extremist groups in Yemen. The aforementioned US-Houthi détente may be insufficient to deter future attacks, as evidenced by the Houthis’ March 2024 attack on a Chinese ship despite making similar promises to avoid targeting their vessels. The Houthis’ decades of insurgency experience have made them adept at surviving airstrikes while preserving their ability to conduct maritime attacks.

This is not to say that airstrikes against the Houthis have been wholly ineffective. The strikes launched by the US this spring inflicted over $1 billion in damage, killed several prominent Houthi figures, and played a role in bringing the Houthis to the negotiating table, and a recent Israeli strike succeeded in killing Houthi military leader Muhammad Abdul Karim al-Ghamari. However, the Houthis may calculate that they would gain more militarily from the increase in aid they would receive from Iran if they began attacking ships which have made port calls to the United States than they would lose as a result of retaliatory American strikes, especially since such strikes would further encourage more disaffected young men to join the Houthi cause.

Finally, the Houthis’ growing proficiency in carrying out Red Sea attacks may embolden them to continue these efforts. The Houthis have increased their coordination with both the Sudanese Armed Forces and the Somali extremist group Al Shabaab in recent months. Greater cooperation with these groups could allow the Houthis to extend the range of ships they are able to target in the region and add further risk to ships hoping to hug the coast of Africa to avoid attacks, while also providing the Houthis with additional sources of regional intelligence and material support.

Rather than relying exclusively on long-range munitions to harass their targets, recent attacks have also shown the Houthis adopting a greater variety of tactics, including using a combination of both remotely operated ships and vessels crewed by combatants who boarded and planted explosive devices on ships. These tactics suggest that the Houthis can continue harassing ships in the region even if the group’s supply of missiles and drones begins to dry up.

While Houthi attacks in the Red Sea and adjoining waterways may wax and wane in the coming months, safe transit through the Red Sea is unlikely to become a reality in the foreseeable future. The Houthis’ Red Sea campaign is not intrinsically linked to the Gaza conflict and may therefore continue even if that war ends peacefully. The Houthis will likely continue to use these attacks as a leverage point to press for more favorable final-status peace negotiations with both Saudi Arabia and Yemen’s internationally recognized government to help secure them a more advantageous political position in Yemen moving forward.

Only an end to the decades-long conflict between the Houthis and their enemies within Yemen will bring an end to the group’s efforts to disrupt maritime commerce in the region.

Matt Reisener is the Senior National Security Advisor for the Center for Maritime Strategy. He previously served as Senior Program Manager for the Middle East and North Africa for the National Democratic Institute, where he managed international development programs in Yemen.

This article appears courtesy of CIMSEC and may be found in its original form here.