Noting the natural military line of the Orange River, the importance of which in more military countries would be emphasized by corresponding works of precaution, for defence and for movement, in its vicinity, it will be observed that parallel to it, at a distance of about fifty miles, within the borders of the colony, there is the stretch of railway from Stormberg, _via_ Rosmead Junction and Naauwport, to De Aar. Beyond the last-named point the line, now become the main road, converges steadily and rapidly upon the border of the Free State, within a dozen miles of which it continues from the point where it crosses the Orange River until abreast the boundary between the Free State and the Transvaal. Between Stormberg and De Aar this line consists simply of the branches that there tie together the main roads, through which the principal seaports--Cape Town, Port Elizabeth, and East London--seek access to the interior. The direction, alike of the main and branch roads, as well as the position of the junctions, are doubtless determined {p.114} by local considerations of topography and traffic. Although constructed for commercial purposes, the line of rail from Stormberg to De Aar has particular military value as an advanced base of operations, from which to start, and upon which, for the initial stages, to rest a campaign. It is central as regards the extremities of the hostile frontier opposed to it; it is moderate in length; and, from the rapidity of transfer from end to end afforded by the railroad, it permits movements on one flank or the other to be combined with comparative facility. Add to this the convergence upon it of the several lines of supply from Cape Town, Port Elizabeth and East London, and it is evident that the line would present particular advantages for the assembling of a British army intending to invade the Free State by the most probable, because most advantageous, route, the direct highroad to Bloemfontein. It is, indeed, the key, the central military position of this theatre of war; not geometrically, by mere measurement of distance, but as the place where converge and unite all the great communications from {p.115} the opposing bases of operations, which at the first would be, for the Free State, the Orange River, and for Great Britain, the line of seaports. The distance from the frontier and the interposition of the mountain range in the Steynsburg district would combine to make observation of preliminary movements difficult to the enemy, except, indeed, by information from the disaffected inhabitants who abounded. The secure and undisturbed tenure of this line would therefore much facilitate the British campaign, should it develop against the Free State; consequently the first aim of the Boer commanders should have been to hold, or if not able to hold, to destroy it effectually as regards steam communication.