After the Israel-Hamas war broke out on October 7, 2023, the Houthis, a Yemeni rebel group, began attacking ships passing through the Red Sea. The Houthis pledged to attack any ship in these waters that does business with Israel, to protest Israel’s war in Gaza and to show solidarity with Palestinians there. But as the attacks have continued, another motive for them has become apparent: strengthening the Houthis’ control of Yemen.

After nine years of civil war, the Houthis today control a sizable area in Yemen, with over 70 percent of the Yemeni population within the group’s territory. The conflict has devastated the country, creating one of the worst humanitarian crises in the world. More than 377,000 Yemenis have been killed — by airstrikes from a Saudi-led coalition; landmines and detonations planted by the Houthis; a lack of medical services; and scarcity of food and water due to a naval blockade. And both the Saudi-led coalition and the Houthis have been accused of committing war crimes against Yemenis.

Today, the Houthis are attempting to establish themselves as Yemen’s legitimate leaders in the eyes of Yemenis, though they’ve done little to improve the country’s humanitarian crisis. The Red Sea attacks, which appear to have significant support among the Yemeni people, might be a means to achieve that goal.