Palestine

You are not familiar with Judaism. They aren't allowed to kill Jews. That's what the commandment means to them and has always meant to them. The second of the ten commandments is about loving your neighbor and to Jews that historically means other Jews and therefore the other commandments following it also only apply to other Jews.

But to be fair, Islam has the same issue of discriminating against unbelievers. At the time of Muhammad, only Jews, Christians and Sabians were tolerated. Others had to convert or be killed.

And to be even more fair, there are orthodox branches of Judaism that are pacifist and therefore definitely don't go out to kill. I really admire Yaakov Shapiro, who is fiercely anti-Zionist and pacifist.

Of the three Abrahamic religions, Christianity is the only one that doesn't allow killing of any humans.

Jesus specifically took the commandments and gave the parable of the Good Samaritan. Samaritans were the Palestinians of his time, descendents of non-exiled Israelites and Judeans. The Jews who came back from Babylon didn't recognize them as Jews and discriminated and oppressed them.

So Jesus gave that parable to make it clear that even Samaritans were neighbours, not just Jews.

Of course, later Christianity became the Roman religion and evolved to become the most violent of the three Abrahamic religions, but Christians have always needed to justify their wars as "just wars" in "self-defense" or "to protect the innocent" and Christian leaders are masters in lying and deceit. Even in modern times, Bush needed to lie about WMD to get support for the Iraq war.

So I don't want to say Christians are less violent - history shows the opposite. Only that Christianity is pacifist in its original form.