The United States and Britain conducted a large-scale military operation in Yemen against Houthi militants. The goal was to weaken the militants’ ability to attack ships in critical sea lanes. The operation involved missile systems and launchers, with support from other countries. The strikes targeted 18 locations associated with Houthi weapons facilities, air defense systems, and radars. The allies aimed to disrupt and degrade the Houthis’ capabilities. The strikes were in response to recent Houthi attacks on vessels in the Red Sea and the Gulf of Aden. The Houthis denounced the aggression and vowed to continue their military operations. The U.S. Central Command reported several incidents involving Houthi attack drones and missiles targeting ships. The situation remains tense, with ongoing military confrontations between the parties involved. For more information, visit www.nytimes.com