3. The Queensberry rules Boxing’s legal status

Military boxing

Boxing has been considered excellent training for soldiers, at least since the time of ancient Greece and Rome. The British army has long trained its personnel in boxing, believing that it developed fitness and, more important, character. The American military followed that lead, and soon after World War II a large number of armies from nations in Europe and Asia incorporated boxing into their military training.
Although few armies currently include boxing in basic training, amateur boxing still features heavily in military sports. The German army (Bundeswehr), British army, and U.S. military all have extensive boxing programs, and their boxers compete at the Olympics as well as at the Military World Games organized under the auspices of the Conseil International du Sport Militaire (CISM). Leon Spinks, Ray Mercer, and Ken Norton are among the prominent boxers who learned their trade in the U.S. military.


Referneces:

1. 
   https://en.wikipedia.org/wiki/Boxing
   
2. 
   https://www.britannica.com/sports/boxing
   
3. 
   https://www.topendsports.com/sport/list/boxing.htm
   
4. 
   https://core.ac.uk/download/29822082.pdf
   
5. 
   https://www.iiardjournals.org/get/RJHCS/VOL.%208%20NO.%201%202022/BOXING%20AS%20A%20DISCIPLINE.pdf