 Because of this trade-off, human wave attacks can be used by an attacker with a lack of tactical training or one who lacks firepower and the ability to manoeuvre, but who can motivate and control their men.Human wave attacks have been used by several armed forces around the world, including European and American armies during the American Civil War and World War I, the Chinese People's Liberation Army during the Korean War, Vietnamese insurgents during the Indochina Wars, and the Iranian Basij during the Iran–Iraq War.Human wave attacks were used during the Boxer rebellion in China.