I didnt look for it, but I didnt see how they came to this conclusion. However, dont you find it interesting that the top ten is DOMINATED by small, european culturally hemogioious nations dependent mostly on banking and trade with the much larger and more powerful nations that encompase them?
Let me see, 1,3,4,5,6,7 dont even have a military or have a military mostly consisting of an honor guard to wear funny uniforms and defend tourest attractions with 16th century pikes (here is looking at you Vatacan city). I am no military defender, and cant stand the war in Iraq, but there are alot of bad people in the world, and SOMEONE needs to be able to do something about it. Good old draft dodging GW obviously WASNT the man for the job.

Only the UK and Germany in the top 20 have populations over 50 million. The USA has 300+ million. Lets compare apples to apples here, put us with the other contries that have 100+ million people. China, India, Indonesia, Russia, Brazil, Mexico, Nigeria, Bangledesh, Pakistan, and Japan.
Japan is the only country on that list that even makes the list, #28. Usually these things are put out there by some interest group that is trying to make a point about something, but completly misses reality in doing so.