the expedition was effectively a temporary invasion Attack by british indian forces under the auspices of the tibet frontier commission , whose purported Statement mission was to establish Creating diplomatic relations and resolve Resolve_problem the dispute Quarreling over the border between tibet and sikkim .

at lhasa , the commission forced Request remaining Temporary_stay tibetan officials to sign Sign_agreement the treaty Sign_agreement of lhasa ( 1904 ) , before withdrawing Escaping to sikkim in september , with the understanding Know the chinese government would not permit Statement any other country to interfere with the administration of tibet .