Rambeau stayed connected with the Avengers and served as a reservist, sometimes assuming leadership duties in the absence of the current chair. She helped repel an Atlantean invasion of the surface world and assists in the Acts of Vengeance, which involved a concentrated, multi-villain attack on Earth's superheroes, or in the Terminus Factor. Rambeau led a reserve substitute roster during the team's first United Nations-backed reorganization. She took on another leadership role during the and led an Avengers delegation to the Shi'ar Empire to petition for peace.