How did World War 1 affect women's fashion in America during the 1920s and 1930s?

Fashion has always had a pretty short memory. The 1920s saw lots of money sloshing around, lots of breaks with tradition and generational disagreement between "flappers" and "matrons." By the 1930s, economic trouble meant that fashion fell pretty low on most people's lists of priorities. Certainly the end of the Great War was a distant influence by then.