Air Force rank:
E-1 (0 stripes) - Airman basic
E-2 (1 stripe) - Airman
E-3 (2 stripes) - Airman First Class
E-4 (3 stripes) - Senior Airman
E-5 (4 stripes) - Staff Sergeant
E-6 (5 stripes) - Technical Sergeant
E-7 (6 stripes) - Master Sergeant
E-8 (7 stripes) - Senior Master Sergeant
E-9 (8 stripes) - Chief Master Sergeant
thanks!