Hapkido is a South Korean martial art founded in 1948 by Choi Yong Sul. It is eclectic, focusing on throws, strikes, joint-locking techniques, and defensive skills.
Hapkido is similar to aikido, even having the same name in Chinese characters. However, there are several things which distinguish hapkido from aikido, namely the fact that aikido is more of a defensive art, while hapkido is more offensive. However, hapkido comes from Daito-ryu Aikijujutsu, the parent martial art of aikido.