Tada Hiroshi 9 dan aikikai 

Aikiken is a form of kenjutsu designed to aid in the understanding of aikido. It is a subset of kenjitsu focused on flow movement footwork but not the essense of killing. However with any imagination or a good teacher you could find some martial applications for Aikiken as well.

Tada Sensei is doing Shiho Giri/4 direction cutting& or Happo giri 8 directional Suburi.Hope this answers your question.

..Amazing

so well harmonized...

wonferful harmonic ki

@sehnsucht77 well said brother...more power

Too forceful for my liking and personality, although as for a self defence demo, Ideal