Let's talk about its origin first. Because Barton's equestrian and swordsmanship are national, he never left his whip before becoming a general. He likes to poke his helmet at others with a whip and then throw it forward to show his respect, which shows his typical cowboy style. Later, his salute was accepted by Eisenhower, Bradley, MacArthur and others and evolved into a military salute of the US military.

Barton-style military salute: the index finger and middle finger of the right hand are close together, and the other three fingers are bent, pointing to the upper right after the return.

PS: The spread and popularization of Barton style is mainly related to the loose discipline of the US military. The U.S. military has also had more formal military ceremony (action) regulations before, such as its naval ceremony (right hand clenched fist, intimate heart). But it is not very effective in execution ~ ~ and with the rise of Barton, his character and some behaviors have gradually become the objects of imitation by ordinary American soldiers. As a result, Barton-style military salute has gradually spread in the US military ~ ~