International Communist League (Fourth Internationalist)

The International Communist League (Fourth Internationalist), earlier known as the International Spartacist tendency is a Trotskyist international. Its largest constituent party is the Spartacist League (US). There are smaller sections of the ICL (FI) in Mexico, Canada, France, Germany, Ireland, Italy, Japan, South Africa, Australia, Greece and the United Kingdom.

The group originated within the Revolutionary Tendency of the Socialist Workers Party in the United States and, upon its expulsion from the SWP, it named itself Spartacist in 1964 in homage to the original Spartacist League in World War I Germany, co-led by Rosa Luxemburg and Karl Liebknecht.[1]