Food for peace means giving food to people who don't have enough to eat in order to make them less likely to fight with each other.
Think about it like sharing your snack with a friend who is feeling angry or upset. When you share your snack, your friend feels better and less angry.
In some parts of the world, there are many people who don't have enough food to eat. When people are hungry, they often become angry and violent. Giving them food can make them feel better and less likely to argue or fight with each other.
The "Food for Peace" program helps to give food to people in places where there are conflicts or wars going on. This way, they can eat and have enough energy to work together and build a better future for themselves and their families.