to join, to become a member of
Ich habe Millionen Menschen dazu gebracht, Ihrer Armee beizutreten.
I have convinced millions of people to join your army.
— Edge of Tomorrow (2014)
So kam ich dazu, immer wieder neuen Gruppen beizutreten.
That's how I ended up joining new groups again and again.
— The Man from Earth (2007)
Tom überredete Mary, unserer Band beizutreten.
Tom persuaded Mary to join our band.
Ich bin derjenige, der Tom davon überzeugt hat, unserem Team beizutreten.
I’m the one who convinced Tom to join our team.