I don't think anyone but the people on the far, far right have considered war romantic since before World War II. Conservatives constantly whine, saying that the current public has "no stomach" for war. What they don't see is that modern society just doesn't think it's fun, they find no romantiscism in it, unlike in previous generations.
If you've ever read the "Glass Managerie", you probably remember the odd part at the end where he says that "With war, comes adventure!" It seems like such a stupid and ignorant statement in modern context. However, kings/the rich in the past would go to war, and use the nobility of the war as an excuse, and they'd get poor people to join in their pointless causes by promoting soldiers to God-like status amongst the people if they'd join in, making them like a new nobility.
Point No. 2 is still in practice, however, the notion that war is romantic is as antiquated as wife-beating.