A mutual defense group forms in Europe and Canada, called the International League of European Allied Nations at the 1960 Lisbon treaty. It contains Canada, Greece, Belgium, Portugal, the Netherlands and Italy.
| Nation. | Year of joining. | Year of leaving. |
|---|---|---|
| Canada | 1960 | - |
| Greece | " | - |
| Belgium | " | - |
| Portugal | " | - |
| Italy | " | - |
| Netherlands | 1961. | - |
| Luxembourg | 1972 | - |
| S. Africa | 1989 | - |
| New Zealand | 1979 Obzerver | 1989 |
| Australia | 1979 Observer | 1989 |
| Germany | 1979 Observer | 1989 |
It became part of NATO in 1969.