The term 'Training Group' can be represented by two words: 'CADRE' (5 letters) and 'Cadet Corps' (10 letters). CADRE is a French word meaning a group of people with a common purpose or mission. It is often used to refer to a group of experienced personnel who provide guidance and instruction to a larger group. Cadet Corps is an organization of young people, usually between the ages of 12 and 18, who are trained in military-style activities such as drill, marching, and physical fitness. The purpose of a Cadet Corps is to teach leadership skills and promote patriotism.