The American diplomatic mission announced the departure of its Chargé d'Affaires, Stephanie Arnold, after three years of service, without revealing the name of a new ambassador. A situation that prolongs an unusual diplomatic vacancy. Since March 2026, the United States has no longer had an accredited ambassador to Madagascar. Claire Pierrangelo was forced to shorten her stay in the country after being recalled by Washington as part of a new American foreign policy on Africa under Donald Trump. This absence is a rare occurrence in the history of bilateral relations between the two countries. Since the departure of former US Ambassador Claire Pierrangelo in March, the embassy has operated under the direction of a Chargé d'Affaires, a formula generally considered transitional in American diplomacy. Four months later, no successor has yet been designated by Washington. In a farewell message published by the diplomatic mission, the United States praised Stephanie Arnold's career, who arrived in Antananarivo in September 2023 as deputy chief of mission before serving as interim Chargé d'Affaires from March 2026. The statement emphasized that she worked during her tenure to strengthen the partnership between the United States, Madagascar, and the Comoros, highlighting her commitment, warmth, and deep attachment to the people she served. Her departure now opens a new period of uncertainty regarding American diplomatic representation in the Great Island. No official announcement has yet been made concerning the appointment of a new ambassador or Chargé d'Affaires. This vacancy occurs at a time when relations between Washington and Antananarivo remain strategic. The United States remains a major partner of Madagascar in the fields of development, governance, security, public health, and trade, particularly through the benefits offered by AGOA and investments in strategic mines in Toliara. The prolonged absence of an ambassador does not undermine the functioning of the diplomatic mission, but it constitutes a signal observed with attention by diplomatic circles. In international practice, the presence of an ambassador reflects the level of priority accorded to a bilateral relationship, while leadership sustained over time by a Chargé d'Affaires generally remains a provisional solution.