Digitalenglish
The ARMY, Navy and Air Force use a lot of machinery, systems, hence personnel constantly need training. Training will be physical or hands-on.
Physical and hands-on training is an effective way of training, but it is costly and requires the physical presence of subject matter experts.
The Army, Navy and Air Force have multiple training centres to train the personnel, hence an expert subject matter expert of OEM can not be available at all the places.