You can't be further fr the truth. Since the Han, Confucianism had taken a strong hold on the Chinese and it disdains military activitiy. To the extent, during the Southern Song dynasty (the most Confucianist of all), they had to take in beggars, convicts and vagrants into the army, 'cause ordinary Chinese simply refused to fight in the army, despite the national danger of invasion. As you shld know, when NS was started in Singapore, the PAP had to do a lot of groundwork to even convince the Singaporean Chinese parents to let their sons participate, for national security reasons. It may look that way for now, but I think it's only nationalism and/or patriotism. Care to explain further? The Chinese govt took great care to try to preserve as much of it as possible (it is a great tourist attraction), but there's no way they can guard all of it, fr ignorant villagers carting away the stonework to build their housing and the like... It's just too long, and much had already been destroyed in previous wars, chaos and the like.