Berlin (AFP) - They gather in the dark, wave German flags and vent their fury at foreigners they fear are overrunning their homeland -- next week Germany's anti-Islamic PEGIDA movement turns one year old.Radicalised by Germany's record influx of refugees and migrants, the long-dormant protest movement has come back with a vengeance onto the streets of Dresden in the former communist East.Last week one protester carried a mock-gallows with the names of Chancellor Angela Merkel and her deputy, despised by the protesters as "Berlin dictators" and "traitors" for their open-door policy to refugees.PEGIDA -- short for "Patriotic Europeans Against the Islamisation of the Occident" -- started life as a xenophobic Facebook group around co-founder Lutz Bachmann, 42.From a few hundred people who showed up for their first evening "Monday stroll" on October 20 last year, it grew to a peak of 25,000 in January, shortly after the Paris jihadist attacks against satirical magazine Charlie Hebdo."We are the people," they have chanted, co-opting the slogan of demonstrators before the fall of the Berlin Wall, and suggesting a righteous revolt against an out-of-touch political elite and the "lying press".A mix of hardcore neo-Nazis and a far greater number of self-proclaimed "concerned citizens", the movement triggered broad distaste in Germany and sparked larger anti-fascist counterprotests nationwide.It seemed to have crashed and burned at the start of the year after Bachmann's racist online slurs and "selfies" sporting a Hitler moustache surfaced, sparking outrage and a leadership split.PEGIDA, and its smaller clone groups in Germany and abroad, disappeared from the streets and the newspaper headlines -- until a spike in migrant arrivals in September brought them back from the dead.- 'Turning point' -"The turning point was when Angela Merkel opened the borders to let in people from Hungary," said Nele Wissmann of the French Institute for International Relations.