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Achievements and dismissal of the government

The Comte d'Argenson served as the Minister of War from 1743 until 1747. He was an advocate of the continuation of the absolute monarchy in the style of Louis XIV. He was responsible for creating the first school for engineers in France at Mézières (1749–50); thanks to the trained engineers, France had the finest system of roads and bridges in Europe. He also established the military academy, the École Militaire, and, following the model of the Prussians, established military training camps and exercises, and helped rebuild French military power.

Machaud D'Arnouville was brought into the government with the sponsorship of d'Argenson, but the two men gradually became rivals and enemies. D'Arnouville was the Controller of Finances from 1745 to 1754, then Minister of Navy from 1754 to 1757. He was the creator of the unpopular "Vingtieme" tax (1749), which taxed all citizens, including the nobility, at the same rate, and also freed the prices of grain (1754), which initially greatly increased agricultural production. The fluctuation of grain prices would eventually become a factor in the French Revolution.

On 1 February 1757, the King abruptly dismissed both d'Arnouville and d'Argenson, and exiled them to their estates. The King held them responsible for not preventing the assassination attempt, and their government displeased Madame de Pompadour.