The Associated Press reports: "Grounded since April because of budget cuts, many of the Air Force's combat aircraft started flying again Monday as the military reshuffled its spending priorities to get its pilots additional training."
"Officials at Air Combat Command at Joint Base Langley-Eustis in Virginia said the order affects planes in the U.S., Europe and the Pacific."
Gen. Mike Hostage, commander of Air Combat Command, said: "Since April we've been in a precipitous decline with regard to combat readiness... Returning to flying is an important first step but what we have ahead of us is a measured climb to recovery."
Here is the link to the USAF's version.