I would lean towards disagreeing with the statement that the policy of Reunions after 1679 was entirely due to Louis XIV's desire for the security of France's borders. Here's why:
1. More Than Just Security: While protecting France's borders was likely one of Louis XIV's goals, his actions suggest he had other motives as well. He seemed interested in making France bigger and more powerful, not just safer.
The "policy of Reunions" was what France did after 1679, under King Louis XIV. After signing a peace treaty, France started claiming lands near its border. It's like finding loopholes in an agreement to grab more land.
2. Louis XIV's Ambition: He was known for wanting to leave a mark as a great king. This ambition probably influenced his decision to expand France's territory, which goes beyond just wanting to keep the country safe.
3. European Reaction: The way other countries in Europe reacted also tells us something. They saw Louis XIV's actions as aggressive, suggesting they thought he was trying to dominate, not just defend.
So in summary, while security was a factor, it's more accurate to say Louis XIV's policy of Reunions was driven by a mix of reasons, including his desire for power and glory, not just the security of France's borders.