 The British took a few months to prepare for the expedition which pressed into Tibetan territories in early December 1903 following an act of "Tibetan hostility", which was afterwards established by the British resident in Nepal to have been the herding of some trespassing Nepalese yaks and their drovers back across the border.When Younghusband telegrammed the Viceroy, in an attempt to strengthen the British Cabinet's support of the invasion, that intelligence indicated Russian arms had entered Tibet, Curzon privately silenced him.