Here's an example of an organization trying to improve its own security without thinking about the security of its neighbours. Outcome of this case remains uncertain, but it looks as if unilaterial security measures have proved ineffectual, if not counterproductive.
US Embassy versus Established Tennis Club. (Dominion Post, 15 Sept 2004)
The journalist writes the story as a metaphorical game of tennis ("The ball's in your court, Uncle Sam"), but it could also stand description as an example of failed diplomacy.