Final answer:
Historically, France enhanced its army through various reforms, starting from the centralization of royal power in the fourteenth century to Napoleon's conscription policies during the French Revolution. The specific law in question relating to strengthening the French army isn't detailed in the provided references, which span multiple eras.
Step-by-step explanation:
French Military Reforms and Laws
Throughout history, France has made various moves to strengthen its army through reforms and laws. The French kings of the early modern period continuously worked to expand their royal control, and by the early fourteenth century, much of France was under this direct rule, enhancing their ability to muster troops for conflicts. Later, during the times of Napoleon, mass conscription was introduced following the French Revolution which eliminated noble privilege and increased the army's size and flexibility. This was a revolutionary change as it allowed soldiers to rise in ranks based on merit rather than noble birth and improved military organization and strategy.
In the twentieth century, France saw the need to adapt its military policies in response to external threats, such as the mobilization of armies during World War II. Compulsory military service, requiring three years from all men, allowed France to maintain a substantial active army. However, the law you might be specifically referring to concerning France passing laws to strengthen its army is not specified within the references provided, covering various historical periods where French military might was reformed or expanded, including the effects of the 1995 terrorist attacks.