From the Japan Society website:

The Japanese samurai were known for their ferociousness in battle and lethal swordsmanship. Dr. David A. Hall, author of Encyclopedia of Japanese Martial Arts, discusses samurai training methods and a number of martial arts schools that have preserved these practices until the present day. Onstage demonstrations by Dr. Hall and a number of local martial arts groups bring the talk to life and educate the audience on the variety of Japanese martial arts that exist. 

Demonstrating groups include:
Ken-Zen Institute
Kyokushin Karate New York
New York Budokai
New York City Kendo Club
Sword Class NYC

TICKETS
$12/$8 Japan Society members, seniors & students* 
*ticket price includes a post-event wine reception