Passage: The powerlessness of the Frankfurt Assembly, however, was reflected in the debate over the Danish Conflict of 1848. Like many other events of 1848, the Danish conflict was sparked by a street demonstration. On March 21, 1848, the people of Copenhagen hit the streets to demand a liberal Constitution. The majority in the Danish province of Holstein and in the southern part of Schleswig were German-speaking.  The citizens of Kiel and Holstein were unsure of what was occurring in Copenhagen. They revolted to found a separate and autonomous province with closer relations with the German states. On March 24, 1848, they set up a new provisional, autonomous government in Holstein and raised a Schleswig-Holstein army of 7,000 soldiers. Unification opinion in the German states supported annexing the provinces of Schleswig and Holstein.

Question: What does unification opinion support?
annexing the provinces of Schleswig and Holstein