There are concerns that cislunar space, the area around the moon, could become a contested region, potentially leading to a situation similar to the Strait of Hormuz. As more countries and companies plan missions to the moon, there are growing challenges related to crowding and collisions, as well as potential security threats. The US military is taking steps to monitor the area, including testing spacecraft for moon surveillance, amid a broader competition for influence in cislunar space involving governments and private companies.