Complex sentence: The Brigade also conducted a communications mission in Afghanistan (OEF) during this deployment beginning September 2008, Company C 37 STB (Signal) was assigned the mission of establishing a joint node network (JNN) throughout that theater of operation.
Split into simpler sentences: The brigade also conducted a communications mission in Afghanistan (OEF). In September 2008, Company C 37 STB (Signal) was assigned the mission of establishing a joint node network (JNN) throughout that theater of operation.