Uchi tachi : sword which attacks.
Uke tachi : sword which receives.
The movement can be repeated as many times as necessary.

Uchi tachi : ken no kamae position hanmi
Uke tachi : ken no kamae position hanmi

Uke tachi : Slight impulsion (trigger) on uchi's ken.

Uchi tachi : Yokomen…

Uchi tachi : …uchi left foot in front

Uke tachi : Step back while rising the ken and...

Uke tachi : …control in hanmi left foot in front

Uchi tachi : Yokomen…

Uchi tachi : ….uchi right foot in front

Uke tachi : Step back while rising the ken from left hanmi to....

Uke tachi : … right hito e mi, cut Men, decisive movement.
Aikido is not a sport, it is a martial art which laws (takemusu) are in harmony with the laws of the universe. Studying them allows the practitioner to understand his place in the universe. Aikido was born in Iwama, O sensei achieved in that village the synthesis of tai jutsu, aiki ken and aiki jo.
The International Takemusu Aikido Federation (ITAF) brings to the practitioner the structure he needs in order to work as close as possible to the reality O sensei MU defined. The official national representations are the guarantee of a teaching faithful to the Founder's.
In modern Aikido, weapons are hardly taught, if taught at all. In O sensei's Aikido, on the contrary, aiki ken, aiki jo and tai jutsu are unified and form together a riai, a family of harmonious techniques stemming from one unique principle. Each techniques helps understand all the others.
Peace is a balance between a human being and the world around him. The true martial art's goal is not to become stronger than one's opponent but to find in that opponent a way to realize harmony. There is no enemy anymore as such, but an opportunity offered to reach unified ki.