It actually became popular in okinawa after the second world war among the men that were serving there
Oh no it was from Japan. Even in WW II when the military was stationed in Okinawa, karate was popular there among the men.
I love karate. I took it earlier when I was younger. Very interesting. I know that karate came to japan only in the beginning of the 20th century. Did you know that? Interesting. I had always thought it originated in China.
After World War II, Okinawa became an important United States military site and karate became popular among servicemen stationed there.