Not really: simply kill the enemy.
Are we to assume everyone on the planet, even enemy nationals, are protected by the constitution?
The Constitution sets limits on what the government does, otherwise it is useless.
Moreover, the government can [and does] claim that certain actions may result in a loss of citizenship; if that is the case, and if the Constitution only protects citizens, then your protection by the constitution as a citizen is entirely at the whim of the government.
Yes, but of course you miss the part where the constitution says that you can’t kill (or punish) people with due process. That’s rather hard to account for during a war now isn’t it?
No, the constitution limits what the government does to its citizens. That’s it. We’ve extended that to legal residents as well. That’s fine, but you cannot do such things as spying or war without ignoring those limitations, and you are going to be sharkbait without the ability to do either. The claim about yanking citizenship requires due process (unless the act is flagrantly illegal).
The world is not a nice place. This is where libertarians fall down in their normally rational world view (not implying you are libertarian, but this position of yours is). They seem to think that our own government is more of a threat than any other government. That’s myopic. Even if we assume our own government is a bunch of tyrannical oppressors, there’s no reason to assume the other governments are not as well, and the local oppressors have a vested interest in at least some measure of well being of their oppressed as they need them. Other governments have no such interest.
the Constitution should ONLY apply to American citizens...it is a contract between the parties involved and should not necessarily apply to anyone else. I, as an American citizen cannot be forced to testify against myself....that should not, as a matter of legal right, be extended to anyone else....they have no contract with our government at all...