How much of that would be spent directly on wages for people working for eh US military and how much sent to external firms? On the other hand how much is sent

How much of that would be spent directly on wages for people working for eh US military and how much sent to external firms? On the other hand how much is sent to external firms where most of their expenditure is in the US and thus comes back rather swiftly in taxes, and how much is siphoned off to overseas stores of wealth.