The legend of the surge has become this era’s equivalent of the legend that America was winning in Vietnam until, in the words of Richard Nixon’s former defense secretary Melvin Laird, “Congress snatched defeat from the jaws of victory by cutting off funding for our ally in 1975.” In the late 1970s, the legend of the congressional cutoff—and it was a legend; Congress reduced but never cut off South Vietnam’s aid—spurred the hawkish revival that helped elect Ronald Reagan. As we approach 2016, the legend of the surge is playing a similar role. Which is why it’s so important to understand that the legend is wrong.