1. In World War I, the Schlieffen Plan was conceived by German general General Alfred von Schlieffen and involved a surprise attack on France. The plan failed because it wasn't realistic, requiring a flawless unfolding of events which never occurs in wartime.
2. The war turned into a stalemate because both sides dug into trenches for the winter, and this dragged on for four years.
3.As the U.S. military recruited young men for service, civilians were called upon to do their part by buying War bonds, donating to charity, or, if they worked in industry, going that extra mile for the troops.
4. not sure
5.In 1915, during World War I, leaders of the Turkish government set in motion a plan to expel and massacre Armenians.
6.In the treaty, Russia ceded hegemony over the Baltic states to Germany; they were meant to become German vassal states under German princelings. Russia also ceded its province of Kars Oblast in the South Caucasus to the Ottoman Empire and recognized the independence of Ukraine.