The Gallian Federation is a fictional nation featured in the video game series Valkyria Chronicles. It is set in a war-torn world inspired by Europe during the early 20th century. The federation is known for its diverse culture, advanced technology, and strong military, which includes the use of tank units and infantry. In the game, the Gallian Federation faces threats from the Imperial Alliance, a militaristic regime seeking to expand its territory. The story follows characters like Welkin Gunther and Alicia Melchiott, who fight to protect their homeland and promote peace. The federation symbolizes resilience and unity in the face of adversity.