defect to (something)
To leave some place, often under repressive conditions and when it is prohibited, and go to another place. I defected to this country after witnessing the atrocities being carried out in my homeland.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
defect to something
to forsake one group and take up with another. Will he defect to the other side? David defected to a small East European country.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.