“Yemen's Houthi rebels have sent a reminder that their "hands are on the trigger", ready to attack Israel if the Gaza ceasefire ends. In the lead-up to the deal, the rebels were the only Iran-backed militant group still regularly launching attacks in solidarity with Palestinians in Gaza. For more than 14 months, they fired at commercial vessels in the Red Sea, and increasingly launched missile and drone strikes towards Israeli territory. Repeated retaliation from Israel and the United States did little to deter them. Since the Israel-Hamas ceasefire came into effect on January 19, the rebels have been scaling back their attacks. As the deal appeared on shaky ground this week, the group vowed to "immediately escalate" if it unravelled.”