The reason there is no hyperinflation due to 21 trillion flowing through accounts is because it's not 21 trillion dollars but 21 trillion flowing in and out of accounts and totaled together as a total dollar amount. In other words if you have 21 trillion accounts and only one dollar you could come up with 21 trillion total if you moved the one dollar around 21 trillion times.
The total Pentagon budget in about $700 billion for 2018. That should be a red flag in your thinking right there.
Second red flag is the name of the politician that brought this up.