Long Tieng
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![A RLAF T-28D at Long Tieng. On November 10, 1972 it ran into a C-123K on the runway.[5]](/Images/godic/202501/24/T-28D1621.jpg")
![Long Tieng in 1973](/Images/godic/202501/24/Long_Tiengd1621.jpg")
Long Tieng (also spelled Long Chieng, Long Cheng, or Long Chen) is a Laotian military base located in Xiangkhouang Province. During the Laotian Civil War, it served as a town and airbase operated by the Central Intelligence Agency of the United States. During this time, it was also referred to as Lima Site 98 (LS 98) or Lima Site 20A (LS 20A).