The subject of Tibet arose briefly in international affairs in 1942-43 as a result efforts by the U.S. to fly aid to China over the Himalayas following the closure of the Burma Road. An America plane crashed in Tibet, and its five crew members were escorted back to India. The U.S. sent a mission to Lhasa led by Captain Ilya Tolstoy to study the possibility of an air supply route crossing Tibetan territory. Although the project was not pushed any further, it created a need to clarify Tibet's status in international law. In 1942, US State Department formally notified the Chinese government based in wartime capital Chungking (Chongqing) that it had at no time raised any doubt about the Chinese sovereignty claim over Tibet. In 1995, US State Department reiterated its position during the hearing before the Senate Foreign Relations Committee: