I don't know much about America being an aussie.
the basics I learned about economics though is that war spending is consumption - fuelling spending and driving up demand for the same goods and services.
However if left unchecked this can be a problem, making it harder for companies to be competitive as the cost of carry neccesarily increases.
If the government 'prints money' by dropping interest rates to fuel consumption, economies find more stable sources of currency (gold, AUD....)

So the US economy isn't in the greatest shape at the moment. I hope that the war will stop shortly so that people can live peaceful, prosperous lives and protect their families by returning them to your soil.

^^^ Amen to that.