Meantime the admiral had withdrawn from German territory, and was amusing himself with a variety of blows aimed at vital points of the republic. An excursion into the Isle of Bommel was not crowned with much success. The assault on the city was repulsed. The fortress of Crevecoeur was, however, taken, and the fort of St. Andrew constructed—in spite of the attempts of the States to frustrate the design—at a point commanding the course of both the Waal and the Meuse. Having placed a considerable garrison in each of those strongholds, the admiral discontinued his labours and went into winter-quarters.
The States-General for political reasons were urgent that Prince Maurice should undertake some important enterprise, but the stadholder, sustained by the opinion of his cousin Lewis William, resisted the pressure. The armies of the Commonwealth were still too slender in numbers and too widely scattered for active service on a large scale, and the season for active campaigning was wisely suffered to pass without making any attempt of magnitude during the year.
The trade of the provinces, moreover, was very much hampered, and their revenues sadly diminished by the severe prohibitions which had succeeded to the remarkable indulgence hitherto accorded to foreign commerce. Edicts in the name of the King of Spain and of the Archdukes Albert and Isabella, forbidding all intercourse between the rebellious provinces and the obedient Netherlands or any of the Spanish possessions, were met by countervailing decrees of the States-General. Free trade with its enemies and with all the world, by means of which the commonwealth had prospered in spite of perpetual war, was now for a season destroyed, and the immediate results were at once visible in its diminished resources. To employ a portion of the maritime energies of the Hollanders and Zeelanders, thus temporarily deprived of a sufficient field, a naval expedition of seventy-five war vessels under Admiral van der Does was fitted out, but met with very trifling success. They attacked and plundered the settlements and forts of the Canary Islands, inflicted much damage on the inhabitants, sailed thence to the Isle of St. Thomas, near the equator, where the towns and villages were sacked and burned, and where a contagious sickness broke out in the fleet, sweeping off in a very brief period a large proportion of the crew. The admiral himself fell a victim to the disease and was buried on the island. The fleet put to sea again under Admiral Storm van Wena, but the sickness