Germany expects up to 100,000 undocumented migrants to leave the country in 2016, a number Interior Minister Thomas de Maiziere Wednesday hailed as high but insufficient after last year's record influx.
Almost three months since the wave of sexual assaults and robberies in central Cologne on New Year's Eve, the first suspect has been charged with a sexual crime.
With large numbers of refugees building up in Greece after Austria and western Balkan nations closed their borders, Vienna has put the ball in Germany's court.