Together with the new Emperor, Schwarzenberg called in the Imperial Russian Army to help suppress the Hungarian revolt, and thus give Austria free rein to attempt to thwart Prussia's drive to dominate Germany. He undid democratic reforms and re-established monarchist control in Austria, with the 1849 March Constitution that transformed the Habsburg Empire into a unitary, centralized state. In matters of German dualism, he was able to impose the Punctation of Olmütz on Prussia, forcing it to abandon, for the moment, its plan of unifying Germany under its own auspices, and to acquiesce in the reformation of the old German Confederation. At the same time his government initiated substantial administrative, juridical, and educational reforms.