What’s your idea for Pixar short film?

Two kids of different countries become friends. One kid got injured while play fighting and the other helped him get up. Years later the countries are at war and the kids, now men are fighting each other. Then one of them got injured in a similar fashion like they were children. They both decide to not fight that day and let each other love. Years later after they are both old and they reunite in times of peace, they decide to play fight once more.