Once independence had been yielded to the American Colonies, the interest of the British Government rapidly waned in affairs American. True, there still remained the valued establishments in the West Indies, and the less considered British possessions on the continent to the north of the United States. Meanwhile, there were occasional frictions with America arising from uncertain claims drawn from the former colonial privileges of the new state, or from boundary contentions not settled in the treaty of peace. Thus the use of the Newfoundland fisheries furnished ground for an acrimonious controversy lasting even into the twentieth century, and occasionally rising to the danger point. Boundary disputes dragged along through official argument, survey commissions, arbitration, to final settlement, as in the case of the northern limits of the State of Maine fixed at last by the Treaty of Washington of 1842, and then on lines fair to both sides at any time in the forty years of legal bickering. Very early, in 1817, an agreement creditable to the wisdom and pacific intentions of both countries, was reached establishing small and equal naval armaments on the Great Lakes. The British fear of an American attack on Canada proved groundless as time went on and was definitely set at rest by the strict curb placed by the American Government upon the restless activities of such of its citizens as sympathized with the followers of McKenzie and Papineau in the Canadian rebellion of 1837[4].
None of these governmental contacts affected greatly the British policy toward America. But the “War of 1812,” as it is termed in the United States, “Mr. Madison’s War,” as it was derisively named by Tory contemporaries in Great Britain, arose from serious policies in which the respective governments were in definite opposition. Briefly, this was a clash between belligerent and neutral interests. Britain, fighting at first for the preservation of Europe against the spread of French revolutionary influence, later against the Napoleonic plan of Empire, held the seas in her grasp and exercised with vigour all the accustomed rights of a naval belligerent. Of necessity, from her point of view, and as always in the case of the dominant naval belligerent, she stretched principles of international law to their utmost interpretation to secure her victory in war.