The MARCH algorithm is a widely recognized acronym for Tactical Combat Casualty Care (TCCC). It stands for Massive Hemorrhage, Airway, Respiration, Circulation, and Hypothermia Prevention, and is used as a mnemonic device for remembering the necessary steps in providing emergency medical care in combat situations. With the help of experienced instructors and challenging scenarios, individuals can learn the intricacies of TCCC in a two-day hands-on training. The acronym MARCH prioritizes bleeding control and helps service members remember the proper order in which to provide care for wounded individuals. It stands for massive bleeding, airway management, respiratory support, circulation, head and hypothermia prevention, pain management, antibiotics, wound care, and splinting. TCCC trainers use the acronym to teach vital life-saving skills, emphasizing the importance of the proper sequence of care.