Recently, it's at least 2014. And they are about 15 countries in ongoing war now (https://en.wikipedia.org/wiki/List_of_ongoing_armed_conflicts https://en.wiki

Recently, it's at least 2014. And they are about 15 countries in ongoing war now (https://en.wikipedia.org/wiki/List_of_ongoing_armed_conflicts https://en.wikipedia.org/wiki/List_of_ongoing_armed_conflict...).