Looking at the matter, moreover, from a broader point of view, it was doubtful whether the British dominion in India was not outgrowing its strength. In 1886 the annexation of Upper Burma added, roughly, 120,000 square miles to the area for which the Government of India was responsible. Of this, roughly speaking, 20,000 square miles lay across the Salween. Before Upper Burma was added to the Empire it had been argued by a great military authority that if we were seriously threatened by an enemy beyond the frontier of India, it would be necessary to recall the garrison of British Burma and to let that province go for the time. If there were any foundation for this opinion the difficulty in the event supposed would be very much increased by the addition of the new province. For no addition had been made to the army in India since the annexation. There were strong reasons, therefore, for not going a yard farther than was necessary. The advance beyond the Salween meant the inclusion of some 20,000 square miles of very difficult country and the possible neighbourhood of a troublesome power. In support of the military arguments it was urged that the Salween was designed by nature for a boundary. It cut its way, in a line running almost due north and south, through steep mountains and rocks. It was not navigable in its upper reaches; the mouth and the navigable portion of the river were in our hands. But as a matter of fact, however adapted by its natural formation for such a purpose, the Salween has not been able to limit the spread of any race or power that has settled on its banks. On the north the Chinese hold both banks. The Shans have settled indiscriminately on either side. It proved no obstacle to the extension of the Burmese power to the eastward. In short, so far from having been "an uncompromising natural boundary," as it has been called, it has not been a boundary at all except for a short length of about sixty miles where it divides the Lower Burma Salween district from Siamese territory. Moreover, it is a timber-floating river. The teak cut on either bank must be rafted down to Moulmein; and hence disputes would be sure to arise. Rivers, as a rule, are held to be bad boundaries, and the Salween is no exception. At first sight the strategical objections to crossing the Salween appeared to derive support from a consideration of the relations to foreign powers which might follow. It was not desired to take any step which might in the near future bring us into contact with France, and thus add a new factor to the frontier problems of our Indian Empire. The Government was even more anxious to avoid action which might give offence to Siam, or have the appearance of want of consideration in our dealings with that somewhat unreasonable power.