source:[1] The $2.3 Billion Startup That's 3D-Printing America's Next War Machine (https://finance.yahoo.com/news/2-3-billion-st ...)[2] Divergent Raises $290 Million: Beyond the Numbers - 3DPrint.com | Additive Manufacturing Business (https://vertexaisearch.cloud.google.com/groun ...)[3] Small US defense stocks soar on rush for next-gen battlefield tech - Investing.com (https://vertexaisearch.cloud.google.com/groun ...)