판타인전의 업적은 무엇인가?
On 13 April 1862, the Vietnamese government was forced to negotiate and officially cede the territories of Biên Hòa, Gia Định and Định Tường to France in the 1862 Treaty of Saigon, confirmed by the Treaty of Huế (1863).
An embassy was sent to France under Phan Thanh Giản in 1863, to try to recover the territories lost to France. Although Napoleon III initially accepted Phan Thanh Giản's plea, the agreement was finally canceled in 1864, under pressure from Napoleon's cabinet led by the Minister of the Navy and the Colonies Chasseloup-Laubat.
try to recover the territories lost to France