The Amestrian State Military is a fictional military organization from the anime and manga series Fullmetal Alchemist created by Hiromu Arakawa. It serves as the primary military force of the nation of Amestris, tasked with maintaining order, defending the country, and enforcing the laws of the state. The military is known for its hierarchical structure and various divisions, including the Central Command and specialized units like the Automail Division. Members of the Amestrian State Military include notable characters such as Roy Mustang, Riza Hawkeye, and Alex Louis Armstrong. The military plays a significant role in the series, often involved in conflicts related to the use of alchemy and the pursuit of power. Its actions and decisions significantly impact the storyline and the development of key themes, such as loyalty, sacrifice, and the moral implications of authority.