Nanxishan Hospital in Guilin, south China's Guangxi Zhuang Autonomous Region, played a little-known but vital role in one of the 20th century's fiercest conflicts, the Vietnam War. Over the course of eight years, a total of 5,324 Vietnamese patients in 119 groups came here to receive treatment. Despite limited resources, 2,576 surgical procedures took place in the hospital – all thanks to the staff who literally gave their blood, sweat and tears in the cause of humanitarianism and socialist fraternal unity.