Following the February Revolution in Russia in 1917, the Tsar's support for his cousin Constantine was eliminated, and he was forced to leave the country, without actually abdicating, in June 1917. His second son Alexander became King, while the remaining royal family and the most prominent royalists followed him into exile. Venizelos now led a superficially united Greece into the war on the Allied side, but underneath the surface, the division of Greek society into Venizelists and anti-Venizelists, the so-called National Schism, became more entrenched.