Yes, people should try to save Asian elephants. They are hunted and killed for their tusks. These parts of their body are used for medicinal reasons. Many people “save” elephants by trimming off their tusks, making it so that killing the animal would be meaningless.
(Hope this is what you wanted, I learned this in a documentary forever ago.)
Short explanation: Elephants are in danger due to poachers, they hunt them for their tusks.
Don’t know how much you needed but here you go