Decolonisation began sweeping the European empires after the war, and from the 1950s the Condominium government began a somewhat belated campaign of modernisation and economic development. Hospitals were built, doctors trained and immunisation campaigns carried out. The inadequate mission-run school system was taken over and improved, with primary enrollment greatly increasing to be near-universal by 1970. There was greater oversight of the plantations, with worker exploitation being clamped down on and Ni-Vanuatu paid higher wages.