There are three questions that are essentially unanswerable concerning the US military as the protector of freedom.
1) If the military had not invaded Blank or overthrown the government of Blank or intervened in the conflict between Blank1 and Blank2, which freedoms would we have lost?
2) Military personnel take an oath to defend the Constitution. How can they defend the Constitution if the very wars they engage in are NOT constitutional?
3) If the military protects and defends our freedoms, why have we consistently become less free?
What question can be answered, and should be debated, is what military actions may better serve our freedom.