sentences:  All four ships served with I Squadron of the German fleet for the first several years of their careers, with "Kurfürst Friedrich Wilhelm" the squadron flagship.During this period, they conducted routine training exercises and visited foreign countries, frequently in company with Kaiser Wilhelm II aboard his yacht.In 1900, they were deployed to China to help combat the Boxer Rebellion, but they arrived after the bulk of the fighting was over and thus saw little action there.