 Complete the following phrase:  By the middle of the 19th century, Prussia was seen by many German liberals as the country best-suited to unify the many German states, but the conservative government used the army to repress liberal and democratic tendencies during the 1830s and 1840s. Liberals resented the usage of the army in essentially police actions. King Frederick William IV 184061 initially appeared to be a liberal ruler, but he was opposed to issuing the written constitution called for by reformers. When barricades were raised in Berlin during the 