The article discusses the decline of the Khmer Empire, focusing on the fall of the God Kings. It highlights the gradual weakening of the empire, due to internal conflicts, political instability, and external invasions. The decline of the God Kings is attributed to their loss of divine status, religious opposition, and a shift towards secular governance. The article emphasizes that this decline marked the end of the Khmer Empire's golden age and led to the eventual takeover by the Thai Kingdom.