Iwama kihon

There are two useful assumptions to have during Aikido; the assumption of a weapon present and the assumption multiple attackers. This is different from actually dealing with a weapon (e.g. tanken dori) or handling multiple attackers. This is about training with a single unarmed uke without creating an opening for a use of a hidden knife and maintaining awareness in all directions. I believe that both are present in the Iwama kihon training.