What discipline were improve 3 times for the samurai warriors?

The samurai warriors of feudal Japan improved in three main disciplines: Martial Arts, strategy, and discipline. They honed their skills in various forms of combat, including sWordsmanship and Archery, while also studying tactics and battlefield strategies. Additionally, the samurai emphasized personal discipline through rigorous training, adherence to a code of conduct, and a strong sense of loyalty and honor. These improvements were essential for their effectiveness as elite military leaders and protectors of their domains.