In the Left movement today, many people today call themselves “anti-imperialists,” but they have a very poor understanding of what anti-imperialism means. “Anti-Imperialism” was a topic of interest in the period between the death of Lenin and the end of the 20th century and continuing until today. “Anti-Imperialism” is incorrectly defined in terms of patriotism, nationalism, and love for one’s nation to militantly fight against imperialism in the modern era. This is the single biggest indicator of how the genuine concept of anti-imperialism has been lost among the people who call themselves Marxist-Leninists, Trotskyists and democratic socialists.