The two types of martial arts that people usually get confused with are Aikido and Kung Fu. Their movements might look the same to some, but there are huge differences between them. Aikido originated from Japan while Kung Fu was from China.
Aikido is known to be one of the least aggressive types of martial arts and is mainly used to defend oneself. Kung fu, on the other hand, it is used to subdue the attacker and treats almost all of the parts of the body as weapons. Even so, both of these techniques are very popular for self-defense.