Sure, it is costly on the country balance sheet, but these billions are basically rerouted to corporate pockets, not disappearing into thin air.
As for "justified" invasion wars...
Since 2001, the US waged 2 open invasion wars, and is doing stuff in Pakistan, Yemen and the Horn of Africa which could be called war.
Here is a list of the other nation states that were involved in *invasion* war (civil war is another thing entirely), in the 2001-2012 timeframe:
- Russia/Ossetia/Georgia/Caucasus emirate
- South Sudan/Sudan
To get back to the main topic, hyperinflation will not happen in the US, inflation is already compensated/transferred to other countries either by trade or by force. However, this already cause your middle class being gutted, while corporations are more prosperous than ever. Basically what Year of the Dog is observing in his office. That's why this hope for hyperinflation irks me, this hope for a sudden "the last will be first" thing. This is a time where the middle class should organize and help each others. This surely would be more pragmatic than waiting for a collapse.