 Upon his return to Constantinople at the successful conclusion of peace talks, Stilicho was promoted to comes sacri stabuli and soon after to comes domesticorum.In 393 Theodosius promoted Stilicho to comes et magister utriusque militiae and gave him command of the campaign against the Goths in the Balkans.The emperor recognized that Stilicho could be a valuable ally, and to form a blood tie with him, Theodosius married his adopted niece Serena to Stilicho.