disunite
verb [ T often passive ] uk/ˌdɪs.juːˈnaɪt/ us/ˌdɪs.juːˈnaɪt/
使分裂，使纷争，离间
to cause people to disagree so much that they can no longer work together effectively
These issues had disunited the party. 这些问题使这个政党发生了分裂。
a disunited party 分裂的政党