Don't have much time so I'll keep this short. Should American citizens be allowed to employ private armies overseas?

This question stems from, first, the belief that a non-interventionist foreign policy is vitally important to the peace of our nation. Second, the freedoms I believe we should have to pursue economic and other goals. And also, watching the documentary Burma VJ, in which one of the individuals is an oppressive dictator that deserves to be killed-- but not by our government.

Problems I see is that foreign troops wouldn't be allowed to pursue onto an American's home territory, making it virtually impossible to force peace or retaliate. And stemming from that, the appearance that the US is safeguarding the combatants. I'm sure many foreign governments wouldn't care to differentiate either way.

What say you?