Vovinam to demonstrate Vovinam publicly in Hanoi with his disciples in 1940, Nguyễn was invited to teach the art at Hanoi's Ecole Normale, and Vovinam gained in popularity. During the following years, political unrest increased throughout Vietnam; due to the system's nationalist political orientation, the art came under suppression. By 1954, Nguyễn had emigrated to South Vietnam, where he was able to continue to teach and establish Vovinam schools. After his death in 1960, Grandmaster Le Sang continued the development and international promotion of Vovinam until his own death on September 27, 2010. The first Vovinam school outside of Vietnam was
Võ phục worn with "võ phục" for Vovinam are similar to those of Japanese martial arts in that they are constructed using the same techniques and materials. Võ phục A võ phục (Sino-Vietnamese: 武服) is a Vietnamese term that refers to a martial arts uniform (which may include a ranking belt), mainly associated with Vietnamese martial arts (Việt Võ Đạo, 越武道), particularly Vovinam. The term "võ phục" may be used alone in the context of Vietnamese martial arts (Việt Võ Đạo, 越武道) or often to refer to the martial arts suit worn by practitioners of Vovinam. The Vietnamese alphabet pronunciation (and writing)