Interesting and does make sense, it would also explain the falling crime rate in the US.
A German social scientist (Gunnar Heinsohn) has taken an old truism of American policing, and applied it on a global scale, to explain why there is terrorism and war in so many places. Heinsohn's theory is that when there are too many young men in a country, there will be more violence. This was noted by American crime researchers decades ago. Thus the explanation for the skyrocketing American crime rates from the 1960s to the 90s. This was the era ruled by the post World War II "baby boom." Read More.