N'ihi ya, na 15 April 1915, Roon na ndị ọzọ nke III Scouting Group e zigara ndị Baltic, ebe ha ga-eche ihu n'ụzọ dị ịrịba ama na-adịghị ike Russian Baltic Fleet. The unit e etisasịwo na Roon na ndị ọzọ na ụgbọ mmiri e kenyere Reconnaissance Forces nke Baltic, n'okpuru iwu nke KAdm Albert Hopman. N'otu oge ahụ, FK Hans Gygas Zerlay dochie Karpf, onye n'aka nke ya ghọrọ osote ọchịagha nke unit na mere ya flagship.
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