Chassang was first taught aikido by Tadashi Abe in 1952. When Abe returned to Japan in 1960, Chassang helped Masamichi Noro to create the Association Culturelle Européenne d'Aikido. He subsequently studied with Mutsuro Nakazono and Nobuyoshi Tamura, with whom he had a long and close alliance.
Chassang was a founding member of the International Aikido Federation, which he served as General Treasurer for several years. He was President of European Aikido Federation from 1981-1987. With Philippe Voarino, he also founded the Takemusu Aiki Intercontinental association.
- "Pierre Chassang". Encyclopedia of Aikido. Aikido Journal. Archived from the original on 5 June 2011. Retrieved 7 May 2013.CS1 maint: unfit URL (link)
- Voarino, Phillipe. "Farewell "Death defier"". Takemusu Aikido Intercontinental. Retrieved 7 May 2013.
- "France, History of Aikido in". Encyclopedia of Aikido. Aikido Journal. Archived from the original on 4 February 2014. Retrieved 7 May 2013.CS1 maint: unfit URL (link)
- Pierre Chassang Sensei, died 29 April 2013, fudokai.org.uk