Importance of Religion by Country

The least religious Countries according to https://en.wikipedia.org/wiki/Importance_of_religion_by_country (May 2017) are:

Sweden, Estonia, Denmark, Norway, Czech Republic, Japan, Hong Kong, UK, Finland, Vietnam, France, Australia, Netherlands, New Zealand, Belgium, Cuba, Bulgaria, Russia, Belarus, Luxembourg

Religion and Peace Statistics

... and which are the most violent countries according to the Global Peace Index 2016 (Source https://en.wikipedia.org/wiki/Global_Peace_Index , in May 2017):

Syria, South Sudan, Iraq, Afghanistan, Somalia, Yemen, Central African Republic, Ukraine, Sudan, Lybia, Pakistan, Republic Congo, Russia, North Korea, Nigeria, Palestine, Colombia, Lebanon, Turkey, Israel