The act of entering the war and the preceding events resulted in a deep political and social division in post-World War I Greece. The country's foremost political formations, the Venizelist Liberals and the Royalists, already involved in a long and bitter rivalry over pre-war politics, reached a state of outright hatred towards each other. Both parties viewed the other's actions during the First World War as politically illegitimate and treasonous. Constantine I, while in exile in Switzerland, continued to oppose the Greek participation in the war and to influence his supporters.
