The Falange Española Tradicionalista de las Juntas de Ofensiva Nacional-Sindicalista (FET y de las JONS, Spanish for "Traditionalist Spanish Falange and of the Unions of the National-Syndicalist Offensive") was the official political party founded by Francisco Franco April 19, 1937, in the midst of the Spanish Civil War.
The party constituted a merger of the Carlist traditionalists and the Falange Española de las Juntas de Ofensiva Nacional-Sindicalista, which itself resulted from an earlier combination of the Falange and the JONS, the national syndicalist party. After Franco's military victory in 1939, the FET y de las JONS became the sole legal political party of Spain.
In 1949, it was reorganized as the main component of the Movimiento Nacional ("National Movement"), which had for some time been its most-used unofficial name. After the end of Franco's rule, the movement disbanded; a number of small ultra-right groups in modern Spain still claim to be its successor.