The outbreak of World War One was predictable and but during the war most people thought Germany had better chances of winning. Germany at the time was a new country that grows to the biggest country in west Europe, the strongest military, and most industrialized. Germany's power caused many pressure and tension in the area, not one country in the area can stand up to Germany alone. Germany held the advantage of the war for most of the time and everyone expected Germany to win. However, Germany lost in 1918, and this is due to shortages of food and raw materials, internal conflicts with citizens who are sick of war, and weak allies that Germany have to take care of.
One reason for Germany's defeat in WW1 is for the reason that Germany suffers severely from shortages of both food and raw materials. Germany is blocked from the seas and access to transportation routes around the world due to diplomatic encirclement.
The English Channel was controlled by the British and the North Sea was impossible to travel through because of the cold weather. The only travel route from Italy disappeared after Italy joined the Allies in May 1915. Germany was desperate for fresh supplies to support its military and industry. Soon the shortages lead to the collapse of the military in its counterattack the Ludendorff Offensive, where the German's broke through and were only 40 miles from Paris. Shortages around the country not only blocked successful battles and forwards in the military, but also affected the people of Germany.
Another factor of Germany's defeat was that they had to deal with unhappy German's back at home who are sick of the war and want it to be over with. There were a lot of anti-war marches around the country and...