Before he could join Bois-le-duc had fallen, and it was not till 1631 that the Stadtholder took the field again. This year, however, saw the annihilation of the Spanish flotilla which attempted to surprise the island of Tholen. Lord Oxford had command of the English contingent, which was detailed to man the prince's boats, and at last George tasted the sweets of victory. The following year he was to witness one of the most brilliant campaigns which had ever been fought in the Low Countries. No sooner was the prince in motion than Venlo, Stralen, Ruremonde fell in rapid succession, and by the middle of June he had completely invested Maastricht. Three armies flew to its relief, but the prince beat them all, and at last was left to prosecute the siege unmolested. The brunt of the work in the English lines fell on Monk's regiment, but the young ensign passed through the four months of almost daily fighting without a scratch. His colonel was not so fortunate. The earl was shot dead in the second month of the siege while bringing up reinforcements to the support of the advanced picket in the trenches. On August 21st Maastricht capitulated, and the campaign was brought to a glorious conclusion. Lord Vere returned to England, having assigned the command of his regiment to George Goring, the eldest son of Lord Norwich and the future notorious cavalry officer of the Civil Wars. It was about this time that Monk was promoted to the rank of captain, and found himself in a position which laid the foundations of his fortunes. He was in command of the colonel's company, that is to say, a double company, of which the colonel was nominal captain. For in the early days of the regimental system every colonel had his company just as every general had his regiment; and as the general had his lieutenant-colonel, so each colonel had his captain-lieutenant taking precedence of all the other captains. It was this rank that Monk now bore, and it was one to which great honour and responsibility were attached. It was in the colonel's company that the volunteers chiefly chose to trail their pikes, and so great was the prestige of Lord Vere's regiment, and so popular the fascinating reprobate who commanded it, that his company was sometimes half composed of unruly young gentlemen who had come abroad to see the wars and sow their wild oats. Thus it was that Monk became personally acquainted with half the officers who afterwards distinguished themselves in the coming Civil Wars, and not only did he make their acquaintance but he won their respect as well. It was only by enforcing the strictest discipline that order could be maintained amongst such a company. Monk took his profession seriously. During his service in Holland he had made deep study of the military sciences, no doubt in company with old Henry Hexham, the learned and literary quartermaster of the regiment. He had no idea of young gentlemen playing at soldiers and disgracing the name