Who accepted those? And did they have a right to do so on behalf of _all_ of humanity?
The conventions are a guideline. To use them as a blanket moral justification for your actions after the fact is extremely disingenuous.
Who accepted those? And did they have a right to do so on behalf of _all_ of humanity?
The conventions are a guideline. To use them as a blanket moral justification for your actions after the fact is extremely disingenuous.