---
title: "Communist International Definition | Model Diplomat"
description: "The Communist International (Comintern) was founded in 1919 to unite global communist parties for revolution, led by Lenin and the Bolsheviks."
url: "https://modeldiplomat.com/learn/glossary/communist-international"
---

[New](https://modeldiplomat.com/)

#

Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The Communist International (Comintern) was a Moscow-led organisation founded by Lenin in 1919 to coordinate communist parties worldwide toward global proletarian revolution.
- Why was the Comintern called the Third International?
- What were the Twenty-One Conditions?
- What was the significance of the Roy–Lenin debate of 1920?
- When and why was the Comintern dissolved?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

The Communist International (Comintern) was a Moscow-led organisation founded by Lenin in 1919 to coordinate communist parties worldwide toward global proletarian revolution.

Go beyond the definition

## Research Communist International like a delegate

Model Diplomat's AI drafts position papers, speeches, and country research with real sources — built for MUN and politics students.

## Research it like a delegate

Research on modeldiplomat.com

## Ask a follow-up about Communist International

Open a cited briefing in Model Diplomat search — timelines, positions, and sources you can use in committee or exam answers.

[Start research on Communist International](https://modeldiplomat.com/search?q=Explain%20Communist%20International%20%E2%80%94%20key%20dates%2C%20actors%2C%20positions%2C%20and%20sources)

Example

At the Comintern's Second Congress in 1920, the Indian revolutionary M.N. Roy debated Lenin over the Colonial Theses, arguing that communists should not subordinate themselves to bourgeois nationalist movements in colonised countries.

Keep learning

## Go deeper than the definition

Lessons

[The Russian Revolution The Rise Of Communism](https://modeldiplomat.com/learn/lessons/upsc-world-history-the-russian-revolution-the-rise-of-communism)

Courses

[Upsc World History](https://modeldiplomat.com/learn/courses/upsc-world-history)

[Explore all Civil Service & Diplomatic Exams lessons](https://modeldiplomat.com/learn/civil-services)[Test yourself with a quiz](https://modeldiplomat.com/learn/glossary/quiz/civil-services)

## Take Communist International beyond the glossary

Ask the AI research engine built for diplomacy — get briefings, position papers, and speeches with sources you can cite in committee.