What is the type of interaction between lion and zebra?

When a lion(s) sees, hears, smells, or has any kind of a sense that there is a elephant around, they will go after it, because they see it as prey. Once the elephants spot the lions, the older larger elephants will make form a circle, and the young elephants will be inside the circle. The elephants get mad, and start making noises to try to ward off the lions. The lions will either go away or they will try to attack.