July 2: Kiel Week officially ends. The participating nations leave on good notes. There was a brief pause in festivities when word of the explosion in Sarajevo while the Archduke of Austria-Hungary was present. But it resumed when it was found out that he escaped unscathed. July 11: the Kaiserliche Marine (Imperial German navy) extends an offer to the Royal Navy to participate in war games in October. Although friendly, it will allow both nations to gauge the naval strength of the other. July 14: The Royal Navy accepts the war game invitation from Germany .