France–Thailand relations
Diplomatic relations with France and Thailand cover a period from the 16th century until modern times. Relations started in earnest during the reign of Louis XIV of France with numerous reciprocal embassies and a major attempt by France to Christianize the Kingdom of Thailand (then known as Siam) and establish a French protectorate, which failed when the country revolted against foreign intrusions in 1688.
Source: Wikipedia — France–Thailand relations (CC BY-SA 4.0)