and rescue and marine environmental protection (response activities). Maritime prevention operations prevent marine casualties and property losses, minimize security risks, and protect the marine environment. The Coast Guard does so by developing and enforcing federal regulations, conducting safety and security inspections, and analyzing port security risk assessments. Codified missions include ports, waterways, and coastal security, marine safety, and marine environmental protection (protection activities). Maritime transport system management ensures a safe, secure, and environmentally sound waterways system. Codified missions include maintaining aides to navigation and ice operations. Maritime security operations includes activities to detect, deter, prevent, and disrupt terrorist attacks, and other criminal acts in the U.S. maritime domain. It includes the execution of antiterrorism, response, and select recovery operations. This mission performs the operational element of the Coast Guard's Ports, Waterways, and Coastal Security mission and complements our Maritime Response and Prevention efforts. Codified missions include ports, waterways, and coastal security (response activities). Coast Guard Defense Operations deploys the Coast Guard globally under the Department of Defense's unified combatant commands, where they operate under the joint force maritime component commands. Codified missions include defense readiness. Coast Guard commands The U.S. Coast Guard is organized into two area commands that cover the entire globe. Operating forces Unified combatant command Unified combatant commands are joint military commands consisting of forces from multiple military departments, with their chain of command flowing from the president, to the secretary of defense, to the commanders of the combatant commands. Each service organizes, trains, and equips forces that are then presented to the unified combatant commands through service component commands. Special Operations Command and Cyber Command also present theater special operations commands or joint force headquarters – cyber to other combatant commanders. Army components are typically dual-hatted as the joint force land component, Navy components are typically dual-hatted as the joint force maritime component, and Air Force components are typically dual-hatted as the joint force air component, with the theater special operations command dual-hatted as the joint force special operations component, and Space Force component typically dual-hatted as the joint force space component. Combat support agencies Combat support agencies are Department of Defense agencies that have a combat support mission, involving providing support for operating forces engaged in planning for, or conducting, military operations, including support during conflict or in the conduct of other military activities related to countering threats to U.S. national security. This mission is