Central European nations should unite to preserve their Christian roots as western Europe experiments with same-sex families, immigration and atheism, Hungarian Prime Minister Viktor Orban said on Thursday. Orban, a nationalist who has been in power for more than a decade, was speaking at an event to inaugurate a monument commemorating the Treaty of Trianon, which was signed after World War One and led to Europe’s maps being re-drawn. “Western Europe had given up on … a Christian Europe, and instead experiments with a godless cosmos, rainbow families, migration and open societies,” Orban said in a speech. He said the monument, a 100-metre long and 4-metre wide ramp carved into a street near Budapest’s parliament building, was a call to central European nations to strengthen their alliance and rally around what he called the “Polish flagship”.