ISIS and the other Terrorist groups (about 50),
are not only the problem of the America!
There are approximately 282 other countries in the world not counting,
Canada, United States and Mexico the biggest countries of North America.
Russia terrorist groups!
And all of them (the 282), are a threat from terrorists groups like Isis, so, why would the countries in North America (British might be leaving), be the biggest contributor to the war with mass murdering Terrorist groups?
Europe’s approximately 50 countries, might not have the military but they still have the threat.
Asia is subdivided into 48 countries, two of them (Russia and Turkey) having part of their land in Europe, might not have the military but they still have the threat.
Africa has 54 fully recognized sovereign states (countries), 9 territories, and 2 de facto independent states, and a very large nest for the terrorist groups to hide and train, needs to join into the fight!
North America, there are 23 countries in North America, most might not have the military and are a prime target of the terrorist groups!
South America includes twelve sovereign states – Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela and two non-sovereign areas are a prime target! French Guiana, an overseas department of France, and the Falkland Islands, a British Overseas Terrorist (though disputed by Argentina).
Yes, President George W. Bush and Vice-president Dick Cheney and their money hungry greed, destroyed the land however; dictators did the same years before them!