Cavalry Day is observed in Thailand every January 4 to celebrate the significant role that cavalry has played in the Royal Thai Army throughout history. The holiday highlights the origins of Thai cavalry, which date back to the Ayutthaya Kingdom, and commemorates military victories led by General Taksin, who reunified the country in the 18th century with the help of cavalry forces. Today, the Royal Thai Army maintains three cavalry divisions located in Phetchabun, Bangkok, and Khon Kaen, although the role of cavalry has evolved primarily to ceremonial functions. Cavalry divisions participate in military parades and serve as part of the royal guard, symbolizing their historical importance. Cavalry Day serves to honor these contributions and the legacy of cavalry in Thailand's military history.