To describe Yak-rustling as ‘an overt act of hostility’ by a foreign power is plainly absurd

The fact that the Viceroy of India was sending telegrams about the fate of frontier livestock to the Secretary of State (and hence the Cabinet) shows the flimsiness of the justifications he was putting forward for invading Tibet. To describe Yak-rustling as ‘an overt act of hostility’ by a foreign power is plainly absurd. It shows the way Curzon was willing to use almost any excuse to obtain sanction for a further advance into Tibet, so certain was he that the Russian bear needed to be checked.

P. French, Younghusband (1992), 193