
US defense manufacturers including Lockheed Martin, Northrop Grumman, RTX, and Boeing reported first-quarter 2026 earnings. Conflicts in Ukraine and Middle East boosted demand, yet supply chain delays and production constraints limited growth. Lockheed Martin's profits declined to $1.5 billion from $1.7 billion yearly. F-35 fighter jet sales offset aeronautics segment losses from F-16 development delays.