Elves are a human-like species that are traditionally found in a fantasy setting in the past. Elves are known for being attractive and graceful. They have a much stronger bond with nature than humans do and in terms of combat are well known for their strong archery skills.
Elves are generally passive in their behavior and are not ones to actively go out and start wars with other races. There are several races within the Elf species such as blood elves, night elves, wood elves, and dark elves. There is no connection between any of these species and the little people that live in the north pole.