The US has fought only 5 declared interstate wars in its entire history. If you include the American Revolution, the Civil War, Korea, Vietnam, and Desert Storm that makes a total of 10 major wars against peer competitors. Every other military action falls into the Small Wars category beginning with the Indian Wars and the Whiskey Rebellion.
One could reduce the number of BIG wars by considering the Revolution our insurgency, Vietnam as COIN, and DS as a simple police action. But even if you don't, small wars are the most likely fights and have been throughout our history. Dunlap (and Gian) are correct that we should not let a peer threat grow to the point where we will have difficulty meeting it but, historically, that has not been the problem at least since 1945. Our problem has always been one of forgetting, ignoring, refusing to recognize the small wars threat and having to learn old lessons all over again - as in deja vu!
Cheers
JohnT
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