Section III. TRAINING AREAS
An advantage of combatives training is that it can be conducted almost anywhere with little preparation of the training area.
Formations used for physical training may also be used for combatives training (FM 21-20). If the extended rectangular formation is used, the first and third ranks should face the second and fourth ranks so that each soldier is directly across him a partner.
A large, grassy, outdoor area free of obstructions is suitable for training. Each pair of soldiers should have an 8-foot square training space. When practicing throws or disarming techniques, soldiers need twice the normal interval between ranks. Instructors also pair soldiers according to height and weight.