17 July: Bunsen wires again saying his informant is Count Lutzow, a former Austro-Hungarian ambassador in Rome, who has been in conversation with Berchtold and Forgách at the Austro-Hungarian foreign ministry.
Lutzow had asked Bunsen if he realised how grave the situation was. If Serbia did not at once cave in, force would be used to compel her. Berchtold was sure of German support.