Answer: seceding

AnswerCrossword Clue
SECEDINGBreaking away
SECEDINGLeaving the country
SECEDINGWithdrawing from a group.
SECEDINGWithdrawing from a union
secedingSECEDE, to withdraw formally from an alliance
secedingto withdraw from an organization (as a religious communion or political party or federation)