The Yemen-based Houthi group, backed by Iran’s Islamic Revolutionary Guard Corps, issued a warning on Friday, stating they will join the war if three red lines are crossed by the U.S., Israel, or other Middle Eastern countries.

This warning comes amid escalating tensions in the region. The group released five points, issued by the Yemeni Armed Forces, regarding the conflict, including demands for a diplomatic solution and a cessation of aggression against Muslim countries, as well as lifting the siege on Yemen.

The fourth point of the Houthi statement specifies the three red lines that must not be crossed. The first urges Middle Eastern countries against allying with the U.S. and Israel in their joint attacks on Iran.

The second red line warns against the use of the Red Sea to carry out hostile operations by America and Israel. The third refers to the continuation of the escalation against the Islamic Republic and the Axis of Jihad and Resistance. The Houthis have made it clear that any violation of these red lines will have direct consequences.

In other points, the Houthis call for humanitarian aid and the respect for the legitimate rights of the Palestinian people, as well as warning against unjust measures aimed at tightening the siege on the Yemeni people.

The statement concludes by affirming that Houthi military operations only target the Israeli and American enemy, with the aim of thwarting the Zionist scheme, and not against any Muslim people.

This warning comes after Iran threatened to attack vessels attempting to pass through a key Red Sea strait amid the closure of the Strait of Hormuz.

Iran shut down the Strait of Hormuz shortly after the conflict began, resulting in skyrocketing oil and fuel prices. The Houthis also warned they would enter the conflict if vessels tried to pass the Bab el-Mandeb strait, located 1,200 miles from the Strait of Hormuz.

Former President Trump designated the Houthis as a foreign terrorist organization shortly after he returned to the White House in January 2025.

In 2023 and 2024, the Houthis fired anti-ship missiles at U.S. Navy vessels in Bab el-Mandeb, an area responsible for 10 percent of seaborne trade.

The U.S. and Iran have offered proposals to end the conflict, though Iran rejected the U.S.’s 15-point peace plan in favor of its own plan.

The Iranian plan requests an end to all hostilities, a halt to strikes killing Iranian officials, and sovereignty over the Strait of Hormuz.