1, 2, 3 .-- Used to illustrate the strategic relations of the armies A and B.
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4 .-- Line of operations directed against the extremity of the enemy's line of defence, as was done by Napoleon in the Marengo campaign.
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5 .-- Napoleon's plan of campaign in 1800, for the army of the Rhine, and the army of reserve.
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6 shows the plan adopted by Napoleon in the campaign of 1800, to preserve his communications.
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7 illustrates the same thing in the campaign of 1806.
Fig.