Ngawang Jigme leads the Tibetan army at the border town of Chamdo to halt the advancing People 's Liberation Army .
Meanwhile , political relations with China sour as they make plans to invade Tibet .
Ngawang Jigme leads the Tibet army at the border town of Chamdo to halt the advancing People 's Liberation Army .
Meanwhile , political relations with China sour as they make plans to invade Tibet .