Khalilzad and Shapiro note several challenges the USAF is likely to face in the coming years, based on adversary improvements in technology and observations of previous USAF operations globally. What are the challenges they discuss in the article? Group of answer choices The USAF is going to have to continue to innovate and modernize if it wants to maintain the current advantages it enjoys over our present adversaries; it will also have to face and overcome several institutional challenges it faces now and will face in the coming years. The USAF is going to have to continue to make significant advances in technology to enable it to access A2/AD environments, and must improve its stealth capability across the realm of airframes if it is to meet the demands of 21st century air defenses. If U.S. aerospace forces are to retain the extensive advantages they now enjoy over the forces of regional adversaries, they will need to continue to develop new operational concepts and supporting capabilities in a number of areas. The USAF must ensure it can gain adequate access to facilities and operating areas in theaters of conflict, and will have to work harder to sustain freedom to operate in