KEESLER AIR FORCE BASE, Miss. -- Training in five key career fields restarts for 400 Airmen here Sept. 19, six months sooner than base officials forecasted more than a week ago. Then, more students will start training the following week, said Col. Jessie Canaday, 81st Training Group commander. And more students will gradually enter training each week after that as this base continues to recover from the pounding it took from Hurricane Katrina. Air Force officials determined what training would start based on the service’s critical needs, said the colonel, commander of the Air Force’s largest training group. “We’re taking...