War on the Rocks – Executing an effective campaign to enhance the resilience of U.S. airfield operations will require informed decisions to prioritize projects and sustained funding. What is clear, however, is that U.S. airfields do face the threat of attack, and the current approach of largely ignoring this menace invites Chinese aggression and risks losing a war. Passive defenses, including hardening, are essential, and other countries have invested heavily in them to sustain airfield operations amidst attack. It is past time for the United States to do so again.