Does Quran teach peace or war?

[Muslim Scholar]

If an Islamic country doesn't allow people to convert out of Islam (ie. apostate), do you feel another country has the right to invade to implement freedom of religion? If not, isn't that a double standard?

The problems is that you are assuming that
equality, freedom of religion are human rights, not they aren't!!!!!!!!!!!!!

You need to think like that

Iff Islam is the true religion
A non-muslim is committing the biggest crime in his life (being not Muslim)
He doesn't have any rights, he even doesn't have the right to live, his punishment is hell forever
However..................
As it is impossible to force him into Islam, God gave him this live to have the chance to revert to Islam before death

In regards of Apostate, he is a person who knew Islam, however he chooses otherwise, because Islam is the only true religion then this person is a very bad (Hopeless) human being, he can be a cause to other people to follow, so he should be eliminated (as a doctor is removing Cancer from the body not to infect the rest)

I know that may words are a bit shocking for you, but it will make sense if Islam is the true religion, If not then it won't make it worse.