| Date | Reference Documents |
| 22nd july 1997 | Declaration of Western European Union on the role of Western European Union and its relations with the European Union and with the Atlantic Alliance |
| 19th June 1992 | Petersberg Declaration - Bonn, 19th June 1992 |
| 10th December 1991 | Declaration on Western European Union - Maastricht 10 December 1991 |
| 26-27 October 1984 | Rome Declaration, 26-27 October 1984 |
| 23rd October 1954 | Brussels Treaty |
