In 2015, the U.S. District Court concluded that the Navy’s War Games in Southern California and Hawaii were in violation of laws meant to protect whales and dolphins. The court found that the high-intensity sonar exercises and underwater detonations involved in the military’s five-year plan were causing disruptions in feeding, communication, and mating behaviors of marine animals. As a result of this ruling, the U.S. Navy had to scale back its SONAR testing activities and take steps to protect marine life in collaboration with the National Marine Fisheries Service (NMFS).

Three years later, the U.S. Department of Defense published a document called the Atlantic Fleet Training and Testing, which highlighted the measures taken by the Navy to mitigate harm to marine animals. Some of these measures include having lookouts stationed and designating areas to protect seafloor resources like coral reefs, artificial reefs, and live hard bottoms. The document also emphasizes the importance of adhering to rules such as ceasing activities if a marine mammal or sea turtle is spotted and avoiding specific areas during certain times of the year.

Unfortunately, as of now, SONAR remains an integral part of naval military operations until a better alternative for navigation is invented. However, by implementing legislation and increasing knowledge about the seafloor, military units can minimize the potential damage caused by SONAR technology. Over time, it is hoped that advancements in technology will lead to the development of more efficient and less disruptive methods of underwater navigation.