One country invests $USD 42 Billion for infrastructure that will last decades, the other spends that much for a few months of an ill-defined war and spying on i

One country invests $USD 42 Billion for infrastructure that will last decades, the other spends that much for a few months of an ill-defined war and spying on its own people. Which one is the USA and which one is China? Depends which century you're talking about I guess.