Spes altera Martis[1] (Latin) The 4th Dragoon Regiment (French: 4e Régiment de dragons, 4e RD) was a cavalry unit created during the Ancien Regime and was dissolved on July 11, 2014.

On May 12 and 13 and following intense combats, the regiment took a hard turn on the south of the Albert canal, then made way to France.

The regiment was dissolved on July 8, 1940 and was cited at the orders of the armed forces for conduit during the short campaign duration.Recreated in February 1947 under the designation of 4e bataillon de dragons portés, the battalion was sent to Tonkin on March 25 of the same year.

The 4e Régiment de dragons was formed from elements of the 5th Armoured Division 5e DB on November 15, 1955, in West Germany, then was sent to Algeria on June 19.

On April 28, 1968, at Olivet, the regiment was recreated and equipped with AMX-13 tanks, composed of two squadrons and two companies of VTT.

The regiment was cited at the orders of the armed forces and was awarded the croix de guerre des théâtres d’opérations extérieurs with palm.

The regiment was restructured in the summer of 2009 passing by an organization bi-bataillonnaire to a structure of 4 tank squadrons supported by a rear defensive base.

The plan Vigipirate constituted equally an important mission part for the regiment, assured all year long in Paris and in regions around France.