When we won world war 1 it gave a huge boost in American pride but indeed America still wanted to focus on itself. Most Americans felt that Europe could rebuild itself (which was horribly wrong and set things up for the rise of Hitler and the start of world war 2.). The American people also felt that Americans should not have to fight and die in foreign wars and that since they were across the Atlantic they didn't need to worry about their affairs.
because they believed that women needed to be protected from political life
Bad, like bad bad. the soldiers were not all soldiers, most of them were tradesmen: blacksmiths, carpenters, farmer, etc. These “soldiers” were not prepared for what happened. The soldiers went through their rations quickly and ate a mixture of flour and water to survive. The sanitary conditions of the camp were terrible because they were nit knowledgeable to put the latrine, the hole they peed, pooped, and threw-up in, far enough away from the camp so that no one got sick. Also it was winter in Pennsylvania, so it was freezing and snowing. The quarters of soldiers were cloths draped over sticks until the cabins were built later. And all of the previous was the conditions of those who were not injured or dying. Those who were injured were having body parts sawed off with woodworking saws without and pain relieving medication, except alcohol. They felt all of it. In conclusion, the soldier were cold, tired, starved, weak, and in some cases crippled. Those who had died early were considered lucky.