Yemeni Houthis Claim to Have Developed a "Marching Submarine"

In what looked like an undersea mine, the Houthis of Yemen say they have developed a "marching submarine."

The device will be used to enforce their sea blockade around commercial shipping going to and from Israel, the Houthis' mouthpiece, Al Masirah implied.

The “Marching Submarine” is an unmanned underwater vehicle developed by Yemeni engineers, designed to support Yemen’s maritime defense and respond to potential threats from hostile ships. Submarines are a significant part of naval power worldwide, with major nations continuously developing diverse types for use in naval operations. These range from nuclear-powered, missile-equipped, and reconnaissance submarines to remote-controlled, unmanned “drone” models, each tailored for offensive or intelligence purposes.

Unmanned submarines have become integral in modern naval tactics. Equipped for precision attacks on enemy vessels, they function as high-speed, explosive sea weapons, capable of avoiding sonar and radar detection. These submarines also have economic production costs, and their remote-control capabilities allow them to engage distant targets.

In recent naval exercises, Yemen unveiled the “Al-Qaari’a” submarine, which has now entered operational service. This remote-controlled submarine is designed for a range of tasks, including engaging ships, frigates, and destroyers in the Red Sea, Arabian Sea, and the Bab al-Mandab Strait.

Houthis Warn Israeli-Linked Ships of Red Sea Blockade Amid Escalated Attacks

Houthi spokesperson General Yahya Saree issued a new warning on Sunday to vessels linked to Israel, stating that changing ownership and flags would not secure safe passage through the Red Sea, where a Houthi maritime blockade remains in effect. The Houthis said they would sustain this blockade, citing intelligence that Israeli shipping companies are selling assets to evade it. Iran-aligned Houthis have stepped up attacks in support of Hamas and Hezbollah. Saree cautioned against cooperation with these companies, as the Houthis will not recognize any ownership changes.

Since November 2023, Houthi forces have launched nearly 100 attacks on Red Sea vessels, sinking two ships, seizing another, and causing at least four deaths.