That's because you choose not to hear it.
By all means please point out threads were known conservative users are complaining about the military spending. There are hundreds of threads started by non-conservatives.
I myself have complained about it. Most libertarians complain about it. You just choose not to hear. You probably won't hear this either.
I have no idea what a libertarian is. I've heard many different definitions. During Bush's tenure there were libertarians that supported him and some that didn't. I've heard libertarians claim the Tea Party as their party and some claim the both the Democratic and republican party. They seem to be all over the map with no real direction. I have heard you say you don't support the military spending but you also said you're not a conservative and I've yet to seen a thread started by a conservative on the issue.
Libertarians are true conservatives dumbass.
Again, labels mean nothing without explaining what is is you want to achieve. Not wanting Big Government. What does that mean? Does it mean you don't want the government to build Hospitals, schools , bridges, roads or set money aside for parks? Do you not want a military or police and fire protection? Do you not want the government involved to make sure the water you drink and the food you eat is safe for consumption?
Again spouting off slogans like not wanting Big Government are so vague and meaningless.