Leading European democracies in addition to the US were challenged by crippled economies and devastated landscapes from World War I. Governments were wanting a return to more isolation and policies which favored their own countries. In the case of Germany, they were struggling to reestablish nationalism and were unable to defend themselves as a country. As a result many people in those countries turned to alternate forms of economy and government to create solid nations once again. All countries saw a rise in socialist thinking and some countries began to move toward socialist ideology. In others especially, Italy and Germany a move toward fascism took place which put nationalism at the forefront and a build up of capitalism to secure their economic place in the world.
Based from the diary entry, it would seem as though the Germans were ready for the Americans to attack. They put mines and obstacles in the sea and on land to deter the approaching army. They used a German 88mm gun-- a long-range anti-air craft, anti-tank, anti-personnel gun most feared by the Allies-- to gun down American soldiers.
Despite these diffulties, the American soldiers drew inspiration and strength to continue fighting under the leadership of Gen. Theodore Roosevelt Jr., son of President Theodore Roosevelt, one of the highest-ranking officer on the beach during D-day
The 20th President of the United States of America was James A. Garfield.