What are the basic principles of Marxism as an IR theory?

Marxist conception of international relations.
The first thing to note is that there is not a Marxist conception of international relations. For pedagogical issues we talk about it, but what we will try to analyze is what has been the contribution that the Marxist theory has done in this field.
This leads us to the study of the Marxist theorists: Marx, Engels, Lenin, Rosa Luxemburgo... Their methodological contributions to international analysis and the confrontation between the "official" theoretical statements of the Communist Party from the Soviet Union, personified in Stalin and the Trotsky's permanent revolution, that was silenced for years by the Soviet authorities. Finishing this topic with the contributions from authors in the Marxist sector that have given rise up to what is known as the dependency theory.
It is important to understand that Marxism as theory and method has created a new paradigm in the study of international relations, since it led to overcome the traditional state-centric conception.
For Marxism the state shouldn't be the center, the basic thing is the concept of the class struggle, and they make emphasis on the contradictions and antagonisms of the existing classes, based on the analysis of the production relations (who controls the production means and who don't). This involves considering the world is not divided into states but into antagonistic classes. Marxist defend the idea of historical materialism, as well as they defend that the economic problems transcend the others, so this way people will focus on trying to make each time more money and therefore will try be part of a richer class. Marxists view the international system as an integrated capitalist system in pursuit of capital accumulation
Therefore, the most important aspects that can characterize Marxist