There is no way to estimate the loss of life or the money cost of the Indian Wars. For the most part, the troops engaged in them suffered no more heavily than in ordinary police duty, and the costs were the costs of maintaining the regular army. The total money outlay for purchases and indemnities was about 45 millions of dollars. Within a century the American people gained possession of one of the richest portions of the earth's surfaces--a portion equal in area to more than three times the combined acreage of Belgium, France, Germany, Italy, Japan and the British Isles[49]--in return for an outlay in money and life that would not have provided for one first class battle of the Great War. Additions to the territory of the country were made with equal facility during the period following the Civil War. Alaska was purchased from Russia for $7,200,000; from Spain, as a result of the War of 1898, the United States received the Philippines, Porto Rico, and some lesser islands, at the same time paying Spain $20,000,000; Hawaii was annexed and an indemnity of $10,000,000 was paid to Panama for the Canal strip. During the second half of the nineteenth century, 716,666 square miles were added to the possessions of the United States. The total direct cost of this territory in money was under forty millions. These gains involved no casualties with the exception of the small numbers lost during the Spanish-American and Philippine Wars. One hundred and thirty years have witnessed an addition to the United States of more than two and a half million square miles of contiguous, continental territory, and three-quarters of a million square miles of non-contiguous territory. The area of the United States in 1900 was four times as great as it was in 1800 and more than ten times as great as the area of the Thirteen Original Colonies. For the imperialist, the last century and a half of American history is a fairyland come true. Other empires have been won by the hardest kind of fighting, during which blood and wealth have been spent with a lavish hand. The empire of the French, finally crushed with the defeat of Napoleon, was paid for at such a huge price. The British Empire has been established in savage competition with Holland, Spain, France, Russia, the United States, Germany and a host of lesser powers. The empires of old--Assyria, Egypt, Rome--were built at an intolerable sacrifice. So terrible has been the cost of empire building to some of these nations that by the time they had succeeded in creating an empire the life blood of the people and the resources of the country were devoured and the empire emerged, only to fall an easy prey to the first strong-handed enemy that it encountered.