Despite deploying his troops as quickly as possible to the borders of the Kingdom of Bulgaria and the Ottoman Empire in an attempt to hold the line, and prevent the Turkish Army from mobilizing into Bulgaria's eastern borders, Bruno himself remained in Sofia, waiting for the representative parties to arrive to discuss the terms of surrender.
It would naturally take a while, as each monarch representing their own nation's interests, and their highest ranking generals were busy elsewhere. This would, after all be a discussion between the Kingdom of Bulgaria and the Central Powers as a whole.
Neutral ground was unnecessary as the Royal Bulgarian Army had surrendered in totality, and had accepted their fate as it was.
