Alliance Training & Testing Armed & Unarmed Security Officer Guard Card License Training Online & Classroom Nashville TN. Alliance Training and Testing is a Veteran Led 5 Star rated trade school that specializes in training students for the Tennessee Armed and Unarmed Security Guard Officer License Guard Card in Nashville, TN. Our 100% Online Unarmed Security Guard Training Course is fully approved by the State of Tennessee Private Protective Services. @GuardTrainingTN.