Admiral Guido von Usedom ( de ) sent her and Barbaros Hayreddin to Nagara to support the Dardanelles forts .
Admiral Guido von Usedom ( de ) is the head of the German naval mission to the Ottoman Empire .
Admiral Guido von Usedom ( de ) , the head of the German naval mission to the Ottoman Empire , sent her and Barbaros Hayreddin to Nagara to support the Dardanelles forts .