When the foreign investor is not a corporation but a government, the expanding commercial influence looks still more surely to tangible political results; because such national enterprises have at bottom a political motive, however much overlaid by an economic exterior. When the British government secured a working majority of the Suez Canal stock, it sealed the fate of Egypt to become ultimately a province of the British Empire. Russian railroads in Manchuria were the well-selected tool for the Russification and final annexation of the province. The weight of American national enterprise in the Panama Canal Zone sufficed to split off from the Colombian federation a peripheral state, whose detachment is obviously a preliminary for eventual incorporation into United States domain. The efforts of the German government to secure from the Sultan of Turkey railroad concessions through Asia Minor for German capitalists has aroused jealousy in financial and political circles in St. Petersburg, and prompted a demand from the Russian Foreign Office upon Turkey for the privilege of constructing railroads through eastern Asia Minor.[313] [Sidenote: Significance of sphere of activity or influence.] Beyond the home of a people lies its sphere of influence or activities, which in the last analysis may be taken as a protest against the narrowness of the domestic habitat. It represents the larger area which the people wants and which in course of time it might advantageously occupy or annex. It embodies the effort to embrace more varied and generous natural conditions, whereby the struggle for subsistence may be made less hard. Finally, it is an expression of the law that for peoples and races the struggle for existence is at bottom a struggle for space. Geography sees various forms of the historical movement as the struggle for space in which humanity has forever been engaged. In this struggle the stronger peoples have absorbed ever larger portions of the earth's surface. Hence, through continual subjection to new conditions here or there and to a greater sum total of various conditions, they gain in power by improved variation, as well as numerically by the enlargement of their geographic base. The Anglo-Saxon branch of the Teutonic stock has, by its phenomenal increase, overspread sections of whole continents, drawn from their varied soils nourishment for its finest efflorescence, and thereby has far out-grown the Germanic branch by which, at the start, it was overshadowed. The fact that the British Empire comprises 28,615,000 square kilometers or exactly one-fifth of the total land area of the earth, and that the Russian Empire contains over one-seventh, are full of encouragement for Anglo-Saxon and Slav, but contain a warning to the other peoples of the world. [Sidenote: Nature of expansion in new and old countries.]