It depends on how you define it, but the number is small. The combined global revenue of Lockheed, Raytheon, and General Dynamics is only ~$170B. A significant

It depends on how you define it, but the number is small. The combined global revenue of Lockheed, Raytheon, and General Dynamics is only ~$170B. A significant fraction of that revenue isn't weapon related e.g. General Dynamics owns Gulfstream and other commercial aviation businesses. No matter how you slice it, the answer is going to be a fraction of a percent i.e. quite small.