The River Kwai Bridge is one of the most famous historical attractions in Kanchanaburi. During World War II, in order to prevent the Thai people from being severely affected by the war, the Thai King promised to assist the Japanese Imperial Army in Thailand. The Japanese army used Allied prisoners of war to build a railway that passes through the forests of the Thai-Burma mountain area to provide Japanese military supplies in Myanmar. At that time, a large number of Allied prisoners were killed by labor, which is a rather heavy historical memory. The River Kwai Bridge was originally a wooden bridge. It had been blown up during the war. The iron bridge now seen was rebuilt later. Today, trains still pass by. Standing on the Bridge over the River Kwai, watching the beautiful River Kwai under it, it is difficult to imagine the fierce fighting at that time, and I hope the world will always be peaceful.