doi:10.7916/d8-d1hr-tj70Chinese sentry overlooking Barkhor Square during period of Martial Law in Lhasa, 1989Tibet Information Networkphotographsstill imageMilitarization of policeHuman rightsTibetansLhasa (China)Photograph of a Chinese sentry overlooking Barkhor Square during period of Martial Law in Lhasa with tank in background.