I was referring to Merkel’s open border pledge in 2015 with respect to Syrian refugees which did create problems given the numbers.
‘In the end, nearly a million people were to apply for asylum in Germany in 2015 alone. The interior minister at the time was Thomas de Maizière: He later admitted that there had been "moments when things got of control." His successor, Horst Seehofer, went even further. For him, there had been a breakdown of law and order that he described as "the rule of injustice." There were several occasions when differences over refuge policy threatened to break apart Merkel's coalition government of her own CDU/CSU conservatives and the Social Democrats (SPD).’ @ Die Welt.
It was a humanitarian gesture that Germany struggled to deal with, but eventually did so. There were many issues, tensions as well as a lot of success stories.