The military history of the Bulgarian people covers more than two thousand years. It begins with the Thracians, one of the ethnic groups, which formed the Bulgarian nation. The Thracians were famous for their military achievements. Two other ethnic groups, which lived together, form our nation along with the Thracians – these are the Proto-Bulgarians and the Slavs. They enrich our military history with their prowess and experience. The present summary goes through the fights for national liberation, the wars for national unification, and the participation of our army in other military conflicts in the 20th and the beginning of the 21st centuries.