sentences:  There are three main military bases in the Western Water Catchment.These include Pasir Laba Camp, Choa Chu Kang Camp at Lorong Danau (where the RSAF's 201 Squadron is based; it has Fighter control, SAM control, Surveillance and ASP) and Sungei Gedong Camp (HQ Armour).A military aerostat, widely referred to as a blimp locally, is tethered to the ground at Choa Chu Kang Camp as part of testing for use as long-range air defence radar in Singapore.