Joseph Luns’ new post is as NATO’s civilian chief. He has worked as hard for Western European unity and cooperation with the U.S. as any statesman on the Continent.

THE crown of my career” is the way Dutch Foreign Minister Joseph Marie Antoine Hubert Luns describes his new post as NATO’s civilian chief. The phrasing is apt. In his 19 years as The Netherlands’ ranking diplomat, Luns, 59, has worked as hard for Western European unity and cooperation with…