Although an, active guerrilla warfare was waged against the Dutch during a large part of that period, they did much to promote the agricultural and commercial interests of the colony, especially under the wise administration of Maurice of Nassau.
From Campania the rebels marched into Lucania, a country better suited for guerrilla warfare.
Occasional political outbreaks occurred, but none of very serious nature except in Rio Grande do Sul, where a long guerrilla warfare was carried on against the imperial authority.
But for the most part the fatal parsimony of his country compelled Koniecpolski to confine himself to the harassing guerrilla warfare in which he was an expert.
His capacity was again demonstrated in the action of Belfast-Dalmanutha (August 23-28, 1900), and after the fall of Pretoria he reorganized the Boer resistance with a view to prolonged guerrilla warfare.