My viewpoint on this matter is widely shared. One example, is the Global Peace Index for 2018, a report for the Institute for Economics and Peace. The Global Peace Index measures some 23 economic, social and political factors which contribute to peaceful societies in 162 countries. And it came as no surprise to see that, among all the nations in the world, Portugal is ranked in the top five.
Report: Global Peace Index for 2018
Open the Report at the source: http://visionofhumanity.org/app/uploads/2018/06/Global-Peace-Index-2018-2.pdf