What could the military advantage of occupying an island?

Occupying an island can provide significant military advantages, including strategic control over maritime routes and supply lines, which can enhance naval operations and logistics. It offers a base for surveillance and reconnaissance, allowing for better monitoring of enemy movements. Additionally, an island can serve as a launch point for air and ground operations, increasing the reach and effectiveness of military forces in the region. Furthermore, controlling an island can deny its use to adversaries, thereby limiting their operational capabilities.