US President Donald Trump has signed an executive order to revert the Department of Defense to its original name, the “Department of War,” reviving a historic title last used after World War II. The order, announced alongside a major military parade, grants Defense Secretary Pete Hegseth authority to use classic titles such as “Secretary of War,” with plans to seek permanent congressional approval. Trump’s move aligns with his push for a “warrior ethos” and a show of strength, reversing name changes made to emphasize peacemaking. The rebranding comes amid escalated military deployments at home and abroad, political debate over its message, and support from Republican lawmakers.