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Defense spending isn't just about drones and satellites - it's about the copper that wires them together. The material behind the hardware is just as strategic as the systems themselves.
When people talk about defense spending, the conversation usually centers on drones, missile systems, radar, satellites, and electronic warfare.
What gets much less attention is the material those systems depend on.
Copper is used throughout military infrastructure, from communications equipment and power distribution to guidance systems, sensors, and electrical wiring. Even before hardware reaches the field, the factories, substations, and manufacturing facilities behind it require significant amounts of the metal.
S&P Global projects global copper demand increasing from roughly 28 million metric tons in 2025 to about 42 million by 2040. Artificial intelligence, electrification, and infrastructure expansion are expected to be major contributors, while continued defense investment adds another source of demand.
One reason this stands out is that defense procurement tends to follow long-term government planning rather than short-term commodity prices. Programs often continue through changing market conditions because they are tied to national security priorities.
That has also increased interest in domestic sources of critical raw materials. Governments across North America have placed greater emphasis on building supply chains that rely less on overseas production, especially for materials considered strategically important.
For investors, that makes it worth following companies working on earlier-stage projects in established mining jurisdictions. One example is NovaRed Mining (CSE: NRED), which is advancing the Wilmac copper-gold project in British Columbia. It's still an exploration-stage company with no defined resource or production, so the usual exploration risks remain. Success will ultimately depend on fieldwork, drilling, and future results.
The bigger theme is that copper is becoming part of several long-term investment stories at once. Electrification, AI infrastructure, grid expansion, and defense all depend on the same underlying material. Whether supply can keep pace with those combined sources of demand is one of the questions the market will be watching over the next decade.
The next decade of copper demand is being shaped by more than just EVs and data centers. Defense is adding a layer of structural demand that markets are only starting to price in.

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