During the 1814 campaigns, Klenau remained with the Army of Bohemia as it approached Paris slowly, from the south-east, via the Seine river valley. The armies would be as many as apart. Their communications would be conducted through Wittgenstein's cavalry and some irregular cossacks, which was directly opposite to the Trachenberg plan. Schwarzenberg knew it was exactly what Napoleon would want them to do, but reluctantly agreed to it.