The below video provides instruction and demonstrations of various techniques for redirecting and addressing an attack in the form of a rear bear hug (ushiro dori) . The techniques are performed by Master Koretoshi Maruyama, Founder of Aikido Yuishinkai.
The demonstrated techniques are:
Ushirodori kokyu nage (kotai level);
Ushirodori kotegaeshi (kotai level); and
Ushirodori kata otoshi (demonstration only – kotai level).