Influence mines are a type of naval mine designed to detonate when a ship or submarine comes within a certain range. They can be triggered by various factors, such as the magnetic field, pressure, or acoustic signals produced by vessels. This makes them particularly effective against military ships, as they can be deployed in strategic locations to protect coastlines or disrupt enemy operations. These mines are often used in warfare to create barriers and control maritime routes. Unlike traditional contact mines, which explode upon direct impact, influence mines rely on the presence of a target to activate, making them harder to detect and neutralize.