Further waves of migration and the gradual winding back of the White Australia Policy, helped to reshape the profile of Australia's religious affiliations over subsequent decades. The impact of migration from Europe in the aftermath of World War II led to increases in affiliates of the Orthodox churches, the establishment of Reformed bodies, growth in the number of Catholics (largely from Italian migration) and Jews (Holocaust survivors). More recently (post-1970s), immigration from South-East Asia and the Middle East has expanded Buddhist and Muslim numbers considerably and increased the ethnic diversity of the existing Christian churches.