section_path: Progress of the war/Opening hostilities/Confusion among the Central Powers
section_name: Confusion among the Central Powers
paragraph_text: Confusion among the Central Powers
  
  Germany promised to support Austria-Hungary's invasion of Serbia, but interpretations of what this meant differed. Previously tested deployment plans had been replaced early in 1914, but those had never been tested in exercises. Austro-Hungarian leaders believed Germany would cover its northern flank against Russia.