=== Groupement Tactique Régimentaire and Home Command ===In 1954 the Groupement Tactique Régimentaire (GTR), (Regimental Tactical Group) was established as Luxembourg’s contribution to NATO and consisted of three Infantry Battalions, an Artillery Battalion, a Services Company, a Medical Company, a Transport Company, a Signals Company, a Company of Engineers, a Heavy Mortar Company, a Reconnaissance Company and a Headquarters Company.