The description is taking of life. The definition is either killing or murder. Killing is broadly seen as not wrong, while murder is.

For example, there are laws against murder. But if, while defending yourself, the other is killed that is not considered wrong, in most cases.

You are right that taking life is taking life. And I would agree that a case could be made for murder in some cases with soldiers.

So the real question is is it killing a fetus or murdering a fetus?

No one debates there is life.