Because like, every basic war machine is made from it? Like how is this a question? There's been two world wars and access to or stockpiling of steel has been

Because like, every basic war machine is made from it? Like how is this a question? There's been two world wars and access to or stockpiling of steel has been a critical strategic factor in both. Most consumable military assets are made from steel, for example and it underpins most machine tools and factory components as well.