Are you suggesting Vietnam was not justified? Just kidding. I would agree on all points except the part about the wars of, and prior to, 1812 having no business interests at heart. The Northwest Indian War of the 1780s and 1790s was completely in support of land speculation companies (Miami company of John Symmes, and others). The sole purpose of the regular army between 1783 and 1797 was to surround and subdue Ohio for the wealthy land speculators who bought up the land and mortgaged it out to settlers at a higher price. The president gave the game away in 1812 when, after Congress declared war, he took the opportunity to build and army and try to conquer British Canada and Spanish Florida. These two strategic objectives had absolutely nothing to do with the supposed motives behind the war declaration. Cotton and sugar barons did have their eyes on Florida. Canada had limitless possibilities. But his decision almost cost us our country, were it not for generals William Harrison and Andrew Jackson. But was there ever a "justified" war in the US?--yes. The first Barbary War against Tripoli was a war I would have prosecuted were I president in 1801. I'm sorry, but World War II was none of our business and we should have let the USSR, UK, and Germany have it out just as they had been doing for the past 1,100 years with almost no interruption. FDR was eager to get in and coerced Japan into attacking us first. So I don't buy that we only entered the war because we were defending ourselves.