This article “Only 10 Countries in the World are not Currently at War” outlines the huge cost of human conflict around the world:
As the world descends into a far less peaceful state overall, the staggering cost of militarism and violence becomes painfully clear — 13.3 percent of the globe’s total economic activity, $13.6 trillion in purchasing power parity, concerned violent conflict. That’s the equivalent of “$1,876 for every person in the world.”
According to the Global Peace Index 2016, only Botswana, Chile, Costa Rica, Japan, Mauritius, Panama, Qatar, Switzerland, Uruguay and Vietnam are free from conflict. Iceland topsthe list of most peaceful countries in the world, followed by Denmark, Austria, New Zealand, Portugal, Czech Republic, Switzerland, Canada, Japan, and Slovenia — while the United States ranked far lower, at 103. Palestine, placed in the index of 163 nations for the first time this year, ranked 148th.
War-torn Syria placed at the bottom of the list, lower than only South Sudan, Iraq, Afghanistan, Somalia, Yemen, Central African Republic, Ukraine, Sudan, and Libya.