disastrous results can ensue from insufficient planning. One of the most spectacular instances of such a failure occurred in 1741 at the Battle of Cartagena de Indias in New Granada, when a large British amphibious assault force with a divided command failed to overcome a much smaller but heavily fortified Spanish defence. Twenty years later, in 1762, a similar British force successfully landed at Havana in Cuba, besieged the city and captured it after a two-month campaign thanks to improved coordination of land and sea forces. A major amphibious landing took place during the Siege of Quebec in 1759, as part of the Seven Years' War. The British produced the first specially designed landing-craft in order to enable their troops to cross the Saint Lawrence River in force. After considering and rejecting a number of plans for landings on the north shore of the river, General James Wolfe and his brigadiers decided in late August to land upriver of the city. The British prepared for their risky deployment upstream. Troops had already been aboard landing ships and drifting up and down the river for several days when on 12 September Wolfe made a final decision on the British landing site, selecting L'Anse-au-Foulon. Wolfe's plan of attack depended on secrecy and surprise — a key element of a successful amphibious operation — a small party of men would land by night on the north shore, climb the tall cliff, seize a small road, and overpower the garrison that protected it, allowing the bulk of his army (5,000 men) to ascend the cliff by the small road and then deploy for battle on the plateau. The operation proved a success, leading to the surrender of the city, and heavily influenced subsequent engagements. In 1762 British Royal Navy sailors and marines succeed in taking the capitals of the Spanish West and East Indies: Havana in Cuba and Manila in the Philippines respectively. In 1776 Samuel Nicholas and the Continental Marines, the "progenitor" of the United States Marine Corps, made a first successful landing in the Raid of Nassau in the Bahamas. In 1782 The British rebuffed a long Franco-Spanish attempt to seize Gibraltar by water-borne forces. In 1783 a Franco-Spanish force invaded the British-held island of Minorca. In 1798 Minorca experienced yet another of its many changes of sovereignty when captured by a British landing. As the British Empire expanded worldwide, four colonies