Is the US military-industrial complex pushing for a new Cold War?

I’m hoping that many of us utilize decentralized energy sources (and energy storage) before it gets vastly worse. But, if you’re referring to giant sea walls, etc. all over our coasts, yeah… I do wonder if they’ll profitably outfit them with 50-mm Anti-tank Gun turrets. Because you can never have enough “safety” nor enough protection from tank attacks via the sea.