League for Socialist Action | |
|---|---|
| Leader | Maurice Spector Jack Macdonald Earle Birney Ross Dowson John Riddell |
| Founder | Maurice Spector Jack Macdonald |
| Founded | 1934 |
| Dissolved | 1977 |
| Split from | Communist Party of Canada (as the Communist League of America and International Left Opposition (Trotskyist) of Canada) |
| Merged into | Revolutionary Workers League |
| Youth wing | Young Socialists |
| Ideology | Trotskyism |
| International affiliation | International Left Opposition (1934-1938), Fourth International (1938-1953), International Committee of the Fourth International (1953-1963), United Secretariat of the Fourth International (1963-1977) |
The League for Socialist Action (LSA) was the premier Trotskyist organization in Canada for much of the 20th century. Throughout its history the LSA went through many different names and iterations. In chronological order it was known as: the International Left Opposition (Trotskyist) of Canada, the Workers Party of Canada, the Socialist Policy Group, the Socialist Workers League, the Revolutionary Workers Party, The Club, the Socialist Education League, and the League for Socialist Action.