When the conquest of a country is undertaken by two or three armies, which have each their separate line of operation, until they arrive at a point fixed upon for their concentration, it should be laid down as a principle, that NOTE.In the campaign of 1757, Frederick, marching to the conquest of Bohemia with two armies, which had each their separate line of operation, succeeded, notwithstanding, in uniting them in sight of the Duke of Lorraine, who covered Prague with the imperial army; but his example should not be followed. The success of this march depended entirely on the inaction of the duke, who, at the head of seventy thousand men, did nothing to prevent the junction of the two Prussian armies. |