the history of the Memorial bravery of Tung Sumrit was start at year 1826 when In
1826 Vientiane King Anouvong invaded Siam seeking complete independence.
Anuvong's forces seized the city of Nakhon Ratchasima by a ruse when the governor
was away. The invaders evacuated the inhabitants, intending to resettle them in Laos.
Yamo and Yaboonleur are credited with saving her people by harassing the
enemy.