http://graphics.straitstimes.com/STI/STIMEDIA/Interactives/2016/02/turf-wars-on-the-south-china-sea/index.html
Countries staking claims in the South China Sea have built airstrips and other structures - including military installations, helipads, lighthouses and even schools - on the disputed islands over the years.
China claims most of the South China Sea. The Philippines, Vietnam, Malaysia, Brunei and Taiwan also have overlapping claims.
Vietnam, for instance, started building an airstrip on Spratly Island in 1976, making it the first runway in the Spratly island group. Taiwan also built an airstrip in Itu Aba in 2008. China is the most recent claimant to do so in 2014 on the Fiery Cross Reef.
http://www.straitstimes.com/asia/se-asia/before-and-after-satellite-images-what-has-been-built-on-disputed-islands-in-the-south