The vile taste that was left in the collective mouths of all the nations that fought in the First World War only grew worse as time marched on and 1927 saw a small rebellion against much of the military training taking place on some U.S. campuses. This article lists a number restrictions that various academic institutions had placed on those military organizations active on college and high school grounds.
Also reported were the spread of three pro-military initiatives on a number of other campuses - but with all the time and the wars that have passed, I think that we all know that nothing keeps the peace better than military preparedness.
In 1929, some people believed that it was wrong for schools to fly the American flag - this article can be read here