this was tempered by the subsequent news of a significant British defeat at the Battle of Carillon. Toward the end of the year the Forbes Expedition seized the site of Fort Duquesne and began constructing the British-controlled Fort Pitt (which later grew into the city of Pittsburgh). This gave the British control of the Ohio Country, which had been the principal cause of the war. In Europe, Brunswick's forces enjoyed a mixed year. Brunswick had crossed the Rhine, but faced with being cut off he had retreated and blocked any potential French move towards Hanover with his victory at the Battle of Krefeld. The year ended with something approaching a stalemate in Germany. Pitt had continued his naval descents during 1758, but the first had enjoyed only limited success and the second ended with near disaster at the Battle of St Cast and no further descents were planned. Instead the troops and ships would be used as part of the coming expedition to the French West Indies. The scheme of amphibious raids was the only one of Pitt's policies during the war that was broadly a failure, although it did help briefly relieve pressure on the German front by tying down French troops on coastal protection service. Annus Mirabilis In France a new leader, the Duc de Choiseul, had recently come to power and 1759 offered a duel between their rival strategies. Pitt intended to continue with his plan of tying down French forces in Germany while continuing the assault on France's colonies. Choiseul hoped to repel the attacks in the colonies while seeking total victory in Europe. Pitt's war around the world was largely successful. While a British invasion of Martinique failed, they captured Guadeloupe shortly afterwards. In India, a French attempt to capture Madras was repulsed. In North America, British troops closed in on France's Canadian heartland. A British force under James Wolfe moved up the Saint Lawrence with the aim of capturing Quebec. After initially failing to penetrate the French defences at the Montmorency Falls, Wolfe later led his men to a victory to the west of the city allowing the British forces to capture Quebec. Choiseul had pinned much of his hopes on a French invasion of Britain, which he hoped would knock Britain out of the war and make it surrender the colonies it had taken from France. Pitt had stripped the home islands of