NATO'S new Secretary-General, Joseph Luns addressed the twentieth anniversary of the NATO Defence College in Rome yesterday (8 October). The aim of the school is to establish understanding between NATO countries and encourage its students, mainly members of the military and diplomatic corps, to work together on problems concerning NATO and developing countries. The courses in Rome last for six months and include tours of European and North American nations. After completing their course requirements, most students go on to hold key NATO positions. Every year a reunion is held at the college by past students and this year's class meeting combined with the 20th anniversary celebrations of the school.