What are the challenges of finding the next meal in times of war? Feeding an army is a giant exercise in logistics, and it is also a testing ground for the food business. We hear how the food technology developed for soldiers in the field has made its way to our plates today. We speak to a soldier who has lived through three generations of military rations about how the type of food issued to troops can indicate the mission in store for them. Plus, we hear first-hand stories from people working in conflict zones, from aid workers struggling to get emergency rations into war-torn Syria, to our own BBC correspondents.

(Photo: Members of Royal Air Force Three Mobile Catering Squadron)