Should one nation have the right to remove another nations head oh government from power? if so, when? if not. why?

What makes this question great is that it is opinion -based, meaning there is no right or wrong answer. Your teacher -- who is awesome, btw, for giving you the opportunity to answer questions like this -- is asking you what you think, and no one on this Web site can tell you that except yourself. The challenge here is to find relevant information to support your opinion. Tell me what you've been studying in class recently, and we'll go from there.