What is the setting in the opening pages of the novel, Under Fire?

Located in the shadow of Mont Blanc, the Dents du Midi, and the Aiguille Verte, in the Alps, where France, Italy, and Switzerland meet, the Sanatorium accommodates the novel's opening scene. Located in a "palatial hospital," it houses an international population of intellectual invalids, who learning of the outbreak of World War I, decry the 30 million soldiers who are bound to die and hope for a better future. It is said to be "isolated in Space and overlooks the world." The rest of the novel shows this prophecy coming to pass and the final chapter shows the victims hoping for an end to war and nationalism forever.