What was the hallmark of Napoleon's method of warfare?

The hallmark used by Napoleon is called "strategy of the central position"

Explanation:

Napoleon, another virtuoso of technique, persistently crushed a lot bigger adversary powers utilizing the guideline of Qi and Zheng, however he was bound to call it "move sur les derrières." In what was known as the "strategy of the central position" Napoleon set his men between two armed forces, frequently by recognizing a feeble situation wherein to enter between the two. He at that point appointed a generally little part of his military to "hold" one armed force under control, while he utilized his best powers to overcome the other armed force "in detail." When one armed force was crushed, Napoleon could turn his Qi powers back to join his Zheng troops, and overpower the subsequent adversary.

d) a constitutional amendment

a drastic rise in oil prices ended decades of postwar.