In the history section we have a topic on the Sino-Indian War Of 1962 and recently the disputes have flared up again with China moving into the territories and buildng roads:
http://www.theguardian.com/world/2017/jul/06/china-india-bhutan-standoff-disputed-territory India sent in soldiers in support of Bhutan and they met chinese:
PRC claims the area is part of Tibet and thus since ancient times part of China: from: http://www.fmprc.gov.cn/mfa_eng/xwfw_665399/s2510_665401/2511_665403/t1473905.shtml The Kingdom of Bhutan is not amused: http://www.mfa.gov.bt/press-releases/press-release-272.html Indian press release: http://www.mea.gov.in/press-releases.htm?dtl/28572/Recent_Developments_in_Doklam_Area Island air field building now in the mountainous Spratleys...