What if you can't figure out who the offending country is? The USA like any other nation is just some people who have emotions and psychology that can be tinkered with. How about six American Carrier groups against the other six??
Sounds like a great excuse to take out all the "usual suspects" at once.
Practically (and without usage of nuclear weopons), the USA can barely handle attrition. Also the USA have not fought a conventional war with another competent regional power since World War 2 and that too was with many allies.
How will you divide them equally and pit them against each other?