The main purpose of the Remembering American Hostages Act of 2025 is to ensure that the Hostage and Wrongful Detainee flag is displayed on significant historical dates related to American hostages and wrongful detainees. This act aims to honor and remember those who have been taken hostage or wrongfully detained, reinforcing the importance of these events in American history. Key provisions of the act include specific dates on which the Hostage and Wrongful Detainee flag must be displayed.