Synonyms of defection in English:

defection


See US English definition of defection

See UK English definition of defection

See Spanish definition of deserción

noun

1‘his defection to the United States’

SYNONYMS
desertion, absconding, decamping, flight
changing allegiances, changing sides, apostasy, recantation, secession
treason, betrayal, disloyalty, rebellion, mutiny, perfidy
rare tergiversation, recreancy