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
ARB (martial art) ARB (martial art) ARB (; ; 'Army Hand-to-Hand Combat') is a Russian martial art of training for protection and attack receptions that incorporated many functional elements from an arsenal of individual hand-to-hand combat and martial arts styles from around the world, and has been used in real fighting activities. The modern and quickly developing form of the martial art is single combat which have received popularity for full contact duels while offering minimum risk of trauma to sportsmen. ARB's origin as a military-applied martial art dates back to 1979 when the city of Kaunas (the settlement Gajzhjunaj, military unit n.o.