Forced? You need to study more history, bro. The Germanic tribes all converted willingly. The Vandals and various Gothics were already Christianized well before they started migrating into Rome. The northern Germanics had a slower process of conversion that was ongoing even as they were still raiding against the rest of Europe.
Slow conversion while being persecuted for refusing to worship the official imperial cult? Eventually destroying the old outdated alters after most of the Empire converted?
Forced? You need to study more history, bro. The Germanic tribes all converted willingly. The Vandals and various Gothics were already Christianized well before they started migrating into Rome. The northern Germanics had a slower process of conversion that was ongoing even as they were still raiding against the rest of Europe.
Look at what they did to the Romans and Egyptians first.
Slow conversion while being persecuted for refusing to worship the official imperial cult? Eventually destroying the old outdated alters after most of the Empire converted?
It's "if you do not bow down, you will die".
That was Charlemagne, and only after the Saxon pagans revolted against him.