One proposed site for the training base was at Pulau Ubin. However, the suggestion was dropped for a number of reasons. Issues such as the difficulty of clearing thick jungle foliage, the cost of building and developing the training base's site, the lack of access to freshwater and the risk of contagious malaria and other diseases made Pulau Ubin unsuitable for a possible location. Later on, during the formation of Singapore Armed Forces, the proposed site for the training bases are located at Pasir Laba and Pulau Tekong respectively. Pasir Laba was the first to be built during the formation of SAF, and set up the live firing zone in the west. Pulau Tekong was the second to be built.