Guillaume Schnaebele, a French frontier official, is arrested on
the German frontier and charged with espionage. This incident was
probably driven by Otto von Bismarck's desire to create a state of
diplomatic tension between the two countries. This would either
push France into a war with the powerful German army, or at least
encourage Russia to renew its alliance with Germany that was
currently under review at St Petersburg.
Citation:
Editors. "Tension between France and Germany".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18964, accessed 21 May 2013.]