The Earth-Minbari War was a major conflict between the human race, represented by the planet Earth, and the Minbari, an advanced alien species. The war began in 2245 when a misunderstanding led to the Minbari attacking Earth after a human ship was destroyed. The Minbari were technologically superior, and the war quickly escalated, resulting in heavy casualties on both sides. The conflict ended in 2261 when the Minbari unexpectedly surrendered, citing a spiritual revelation. This decision was influenced by the discovery of a human with a Minbari soul, known as Delenn, who played a crucial role in peace negotiations. The war had lasting effects on both civilizations and shaped future relations.