The route nationale 18 (RN18) is a trunk road ( nationale) in north east

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...

. The RN 18 was constructed in 1959.

Étain to Longwy (0-49km)

The road begins at Étain at a junction with the N3, heads north to

Longuyon Longuyon () is a commune in the Meurthe-et-Moselle department in the Grand Est region of north-eastern France. The inhabitants are called ''Longuyonnais''. Geography Longuyon is located at the confluence of the Chiers and Crusnes rivers and ...

and then turns northeast to

Longwy Longwy (; older german: Langich, ; lb, label= Luxemburgish, Lonkech) is a commune in the French department of Meurthe-et-Moselle, Lorraine, administrative region of Grand Est, northeastern France. The inhabitants are known as ''Longoviciens'' ...

where the road meets the N52. There the road forks as the D918: the north fork crosses the frontier to

Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...

(N830) and the eastern fork enters

Luxembourg Luxembourg ( ; lb, Lëtzebuerg ; french: link=no, Luxembourg; german: link=no, Luxemburg), officially the Grand Duchy of Luxembourg, ; french: link=no, Grand-Duché de Luxembourg ; german: link=no, Großherzogtum Luxemburg is a small lan ...

as the N5.

References

Routes nationales in France {{france-road-stub