Flight attendants are normally trained in the hub or headquarters city of an airline over a period that may run from four weeks to six months, depending on the country and airline. The main focus of training is safety. Safety training includes, but is not limited to: emergency passenger evacuation management, use of evacuation slides/life rafts, in-flight firefighting, and survival in the jungle, sea, desert, ice, first aid, CPR, defibrillation, ditching/emergency landing procedures, decompression emergencies, Crew Resource Management and security.