The North Atlantic Treaty Organization or NATO is an intergovernmental military alliance based on the North Atlantic Treaty which was signed on 4 April 1949. The NATO headquarters are in Brussels, Belgium, and the organization constitutes a system of collective defence whereby its member states agree to mutual defense in response to an attack by any external party.
Formation 4 April 1949
Type Military alliance
Headquarters Brussels, Belgium
Membership 28 states
Official languages English,French
Secretary General Anders Fogh Rasmussen
NATO Members comprises 28 members: Albania, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Turkey, the United Kingdom, and the United States
Read also: General Knowledge of UNO
List of Secretaries Generals
# Name Country Duration
1 General Lord Ismay United Kingdom
4 April 1952 – 16 May 1957
2 Paul-Henri Spaak Belgium
16 May 1957 – 21 April 1961
3 Dirk Stikker Netherlands
21 April 1961 – 1 August 1964
4 Manlio Brosio Italy
1 August 1964 – 1 October 1971
5 Joseph Luns Netherlands
1 October 1971 – 25 June 1984
6 Lord Carrington United Kingdom
25 June 1984 – 1 July 1988
7 Manfred Wörner Germany
1 July 1988 – 13 August 1994
– Sergio Balanzino (acting) Italy
13 August 1994 – 17 October 1994
8 Willy Claes Belgium
17 October 1994 – 20 October 1995
– Sergio Balanzino (acting) Italy
20 October 1995 – 5 December 1995
9 Javier Solana Spain
5 December 1995 – 6 October 1999
10 Lord Robertson United Kingdom
14 October 1999 – 17 December 2003
– Alessandro Minuto-Rizzo (acting) Italy
17 December 2003 – 1 January 2004
11 Jaap de Hoop Scheffer Netherlands
1 January 2004 – 1 August 2009
12.Anders Fogh Rasmussen Anders Fogh Rasmussen
1 August 2009 1 October 2014 Denmark
13. Jens Stoltenberg 1 October 2014 Incumbent Norway