Time should always be taken to study - and they do this very well in Britain and other European countries where a significant historical record exists.
In most instances, they stop, study, collect artifacts, and whatever construction going on resumes. Not much to ask, and any competant business person in those areas knows to draw in a bit of wiggle room in their budgets and time projections because this is a common occurrence.
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Si vis pacem parabellum.
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