Mezue ahịrịokwu na-esonụ: N'ime narị afọ nke 19, Nguyễn nọgidere na-enwe mmekọrịta na Cambodia na Laos mgbe usoro nke agha agha metụtara Alaeze Siamese Rattanakosin, gụnyere nnupụisi Cambodia, nnupụisi Lao, Siamese-Vietnamese War nke 1831-1834, na
Agha Siamese-Vietnam nke 1841-1845. Ndị Nguyễn gbasakwara n'ihu n'ala Champa n'ebe ndịda Vietnam nke oge a na-aga n'ihu na narị afọ Nam tiến.