To hijack for a moment, I agree this is the conventional wisdom, but I’ve often wondered why. I attribute it to the Republican Party being much better at talking a good sabre-rattle than actual combat statesmanship.
Republicans are great at suggesting military action against all and sundry, but are notoriously bad at solidifying our aims during wartime, all the way back to Lincoln’s initial “We’re fighting the South but we’re not planning on ending slavery” platform, which he put forth for a time before he realized that it was never going to fly.
Democrats (LBJ excepted) are much less likely to draw first (sometimes to their detriment), but are much better at bringing things to a satisfying end, and even more importantly, cleaning up afterward.
Wilson brought America onto the world stage in high style with our conduct during WWI, and our attempts to help Europe reconstruct itself afterward.
As morally questionable as Truman’s use of the Bomb was, it did bring a decisive end to the conflict, and our rebuilding of the German and Japanese economies afterward made us the toast of the world. While the Korean War’s “we declare we won, let’s get out of here” ending left a lot to be desired, South Korea has gone on to become a world economic power.
Contrast this with Nixon, elected in 1968 with a “secret plan” to end the Viet Nam War, who instead decided to let a few thousand more soldiers die so America would not be burdened with a war that ended without an “honorable peace”.
Or Reagan’s answer to the growing questions about why we were doing so badly in Lebanon, which was to invade Grenada (sound similar to anyone’s answer to the bogged-down War on Terrorism?)
Or Bush I, whose aborted Persian Gulf War was so inconclusive that we are now in today’s situation. Plus his deft handling of post Cold War Russia, which if handled the right way at the right time could have set that nation on the road to German- or Japanese- style prosperity.
Now we have Shrub, who’s plan was apparently to bring the Iraqi people Total Liberty with No Guarantees, which in every political book but his, equals anarchy. No matter, on to Syria.
Democrats generally don’t like war, going into it slowly, getting out of it quickly, and attempting to fix the mess left behind. Republicans like to stay at war, mucking about in it like it’s the best sandbox a kid ever came across.
Guess who I’d rather have in office during wartime. Or peacetime.