The most important political tensions in Belgium in recent years have been between: communists and socialists. socialists and conservatives. Christians and Muslims. French speakers and Flemish speakers.

Belgium does not have a strong communist or conservative party, and rather is ruled by social democrats - less extreme socialists.

However, it is a country composed of two groups - the Dutch or Flemish speaking and the French speaking so the correct answer is: French speakers and Flemish speakers.