Fighting a fire on a ship requires a highly coordinated and specialized approach due to the "enclosed space" nature of the vessel and the risk of capsizing from excess water weight. The process begins with detection and containment; modern ships are divided into "Fire Zones" by heavy steel "A-60" fire doors that can be sealed to starve a fire of oxygen. Crew members are trained into specialized "Fire Parties" (Attack, Support, and Emergency). They use specialized equipment like SCBA (Self-Contained Breathing Apparatus) and thermal imaging cameras to locate the seat of the fire in dense smoke. For engine room fires, ships use "Fixed Firefighting Systems" like CO2 or FM-200 Smothering Systems, which flood the entire room with gas to extinguish flames without damaging electronics. For deck fires, powerful "Fire Monitors" (water cannons) and "AFFF" (Aqueous Film Forming Foam) are used to smother flammable liquid fires. A critical part of maritime firefighting is Boundary Cooling—spraying water on the bulkheads (walls) of surrounding rooms to prevent the heat from conducting through the steel and starting new fires elsewhere on the ship.