"Besides that, fighting is now constantly taking place on the frontier, as we read almost every day. With a hostile Afghanistan, or even an unfriendly Afghanistan, frontier warfare would be far more serious and more continuous than it was in the past. In 1897 we employed 120,000 troops on the frontier, though the Afghans at that time were quite friendly to us. In the spring of 1919 when the Afghans invaded India, we required over 200,000 troops on the frontier, or, with non- combatants, about 300,000 men, though only part of the tribes rose at that time. Is the Government sure that when the Army is reduced as proposed it will be able to deal with the much greater troubles that may at any time arise on the frontier and at the same time be sufficient to preserve order in India?"
January 1, 1970
https://en.wikiquote.org/wiki/George_Clarke%2C_1st_Baron_Sydenham_of_Combe