The cadets taking part in the exercise have seven weeks left of training before they commission at Sandhurst.
During Templar's Triumph at Hampshire's Longmoor Camp they are required to put weeks of theory into practice.
Retired Brigadier Ian McLeod has worked for the ICRC for 20 years and says it is important that the military understands how the organisation works.
"We're trying to get across what we are - we are a neutral, independent, impartial humanitarian organisation whose role is to protect and assist the victims of conflict and other situations of violence.
"If they have some knowledge of our organisation they understand us and how we operate, then that might make our job easier and safer in the field if we come across UK forces.
"Sometime in the future you may, on some disputed barricade, or some scarred slope of battered hill, meet ICRC and you'll say 'Well, we know roughly what these guys are up to'."