Sorry, "dutch strategy" because the good burghers of Amsterdam, Rotterdam, etc. realised that although sailors have deplorable* morals, the burgher's prosperity depended upon having many sailors transiently around, so the burgher's solution was to create neighbourhoods catering to vice, with the idea that it would be tolerated there, and specifically there — far from the "good" neighbourhoods where their silk-skirted patent-leather-shod daughters hung out.
* we've already touched upon LaSalle(?)'s riposte to Bonaparte, right?
