When were the Dutch early enough in preparing for war?
Short answerThe early Anglo-Dutch wars and expansion in the Dutch East Indies are the suggested examples.
NotesThe early Anglo-Dutch wars are the successful examples, with the fourth war treated as a later reversal. Expansion in the Dutch East Indies provides another example of forceful preparation and execution. One estimate describes growth from minor holdings to dominance across the archipelago over about eighty years. The chronology is stated loosely around the late eighteenth and early nineteenth centuries.