Dee ihe na-aga n'ihu maka paragraf a - N'oge 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 <unk> Vietnamese War nke 1831 <unk> 1834, na Siamese <unk> Vietnamese War nke 1841 <unk> 1845
Ọ dị mma. Ndị Nguyễn gbasakwara n'ihu n'ala Champa n'ebe ndịda Vietnam nke oge a na-aga n'ihu na narị afọ Nam tiến.