Complex sentence: Mainly his works concentrated on effectiveness of battalions, increasing fire power, crypto systems and command speed.He seperated the network centric warfare system on four main parts and each parts seperated on three different subhead.
Split into simpler sentences: Mainly his works concentrated on effectiveness of battalions, increasing fire power, crypto systems and command speed. He separated the network-centric warfare system on four main parts and each parts separated on three different subhead.