Among other reasons for independence, campaigners assert that Tibet has been historically independent. However, some dispute this claim by using different definitions of "Tibet", "historical" and "independence". The campaigners also argue that Tibetans are currently mistreated and denied certain human rights, although the Communist Party of China disputes this and claims progress in human rights. Various organizations with overlapping campaigns for independence and human rights have sought to pressure various governments to support Tibetan independence or to take punitive action against China for opposing it.