These BSO are similar to "Army Groups" in Western armies, high level staff units formed to manage different theatres of military operations. They were responsible for the overall direction and co-ordination of the Regional Military Commands (RMC) with BSO-1 covering Northern Command (NC), North Eastern Command (NEC), North Western Command (NWC), Western Command (WC) and Eastern Command (EC). BSO-2 responsible for South Eastern Command (SEC), South Western Command (SWC), Western Command (WC) and Central Command (CC).
These BSO are similar to "Army Groups" in Western armies, high level staff units formed to manage different theatres of military operations. They were responsible for the overall direction and co-ordination of the Regional Military Commands (RMC) with BSO-1 covering Northern Command (NC), North Eastern Command (NEC), North Western Command (NWC), Western Command (WC) and Eastern Command (EC). BSO-2 responsible for South Eastern Command (SEC) South Western Command (SWC), Western Command, (WC) and Central Command (CC).