NEWSNATIONNOW (Anna Kooiman) - Active-duty airmen have 2 weeks to prove they're fit to serve
A new number could decide who stays in the United States military.
STRIPES (Kaylyn Barnhart Batista) - Airmen take on 100-mile challenge to prepare for new Air Force fitness standards | Stars and Stripes
During the monthlong event, participants aim to reach 100 miles by running, walking, cycling, swimming or using equipment such as an elliptical.