Ridiculous "peace index" created by westerners

This is the news about the release of the first so-called global peace index.

In my opinion, to judge if a country if peaceful or not, some straightforward index are very valid, at least much better than these trash "experts" suggested.
1. How many countries this country has had wars with?
2. How many countries this country has military presences without authorization from UN?
3. How many civilians this country's military has killed in recent 20 years?



Some information about the so-called peace index can be founf in wiki.