As the Biden administration calls for tougher antitrust enforcement, the aerospace and defense (A&D) industry faces increased antitrust scrutiny. In this Law360 article, McDermott’s Jon Dubrow, Lisa Rumin and Anthony Ferrara explain how policy changes by the Federal Trade Commission, the Antitrust Division of the US Department of Justice and the US Department of Defense may affect A&D industry participants in various aspects of their businesses, including mergers and acquisitions, teaming agreements and labor practices. The authors also offer suggestions to help these companies mitigate antitrust risk arising from heightened antitrust scrutiny of the industry.