A meeting of solidarity, friendship, and struggle, left to right: phan van dong, premier of the democratic republic of vietnam (north vietnam), samdech norodom sihanouk, cambodian head of state, chinese premier zhou enlai, prince souphanouvong, chairman of the laotian patriotic front, and nguyen huu tho, president of the advisory council of the provisional revolutionary government of the republic of south vietnam, 1971.