>> marwan abou taam is an analyst and advisor for the german police. he believes the women knew exactly what they wewere doing. they played a ay role forhe t terrogrououp and swore an oath of allegiance to them. >> they speak about i.s. as a conqueueroring armrmy. and thes methods of conqueroring g were extremely brbrutal, and ththats documented on film. the propagananda videos s were fid there. people wewere publiclyy whipipped and executed. those liliving in raqqa must havave n aware of t these things, especiallyly as it's n e evena very large city. >> in october 2017, i.s. was defeated, and raqqa liberated. it's not clear if the families of these foreign i.s. members still support the ideology. but what lessons have they learned? >> life in germany is good, you can practice islam betetter thn in the islamic state, in the daesh. h having been t there, e seen it. >> back inin germany, they'll likely face trial. but it could be difficult to prove they have committed a crime. so their dream of living free back in germany could soon come true. ♪ >> >> m