分ぶん党とう

noun

party split; secession from a party

Refers to a faction breaking away from a political party to form a new one, or the act of splitting a party.

• 党とう内ないの対たい立りつが深ふかまり、ついに分ぶん党とうに至いたった。

  Internal party conflict deepened, finally leading to a split.