The viceroy of British India – Curzon insisted that they should invade Tibet militarily, wipe off Russia’s threat to India, and reinforce Britain’s advantages in Tibet. Young Husband’s invasion of Tibet was an important move of his “ Forward Policy”. At that time, the British cabinet did not have a systematic plan to Tibet, so they gave tacit consent to Curzon’s policy. After the sign of Lhasa Treaty, British government did not agree with a reparation of 7.5 million Rupee, and required Curzon to reduce the amount to 2.5 million Rupee. Under the overwhelming force, Curzon had to act accordingly.