Hare Krishna.
There is historically documented evidence of great Samurai kshatriya culture, and its degradation, which we lack so much these days, not the degradation. That included cow and animal protection as well, and many other great qualities as described in Srimad Bhagavatam, Mahabharata, etc.
https://www.bvashram.org/the-samurai-protectors-of-the-cow/ https://en.wikipedia.org/wiki/Samurai#:~:text=the%20samurai%20armies.-,Culture,throughout%20the%20centuries%201200%E2%80%931600. https://www.facebook.com/HinduDialogue/posts/the-samurai-protectors-of-the-cow-mus-read-japanese-journey-during-last-1500-yea/451902394958457/ https://dailyhistory.org/What_Were_the_Beliefs_of_the_Samurai