sentences:  Two days later, the fleet arrived off Gotland to show the German flag, and was back in Kiel by 30 December.The squadron returned to the North Sea for guard duties, but was withdrawn from front-line service in February 1915.Shortages of trained crews in the High Seas Fleet, coupled with the risk of operating older ships in wartime, necessitated the deactivation of "Kaiser Wilhelm II" and her sisters.