I presume your question is in reference to The Great War, which we now call World War I.
The days leading up to the Great War (World War I) were full of military buildup, military planning, and countries lining up with one another in alliance systems. The Triple Entente had Britain, France and Russia as allies. In between those countries were the members of the Triple Alliance: Germany, Austria-Hungary, and Italy, with Germany as the leading power in that group.
Because of the alliance system, Germany assumed that if a war began, it would need to fight on two fronts -- west and east. Germany assumed it would be fighting against both France (on its western border) and Russia (on its eastern border) if war broke out.
German Field Marshall Alfred von Schlieffen drew up war plans that said attack France first, quickly, and then hold that territory while deploying forces to contend with Russia in the east.
In 1914, when Russia mobilized troops to come to the aid of Serbia against Austria-Hungary in 1914 (after the assassination of Austria's archduke by Serbian radicals), Germany declared war on Russia. And when Germany went to war, the first thing it did was to march through Belgium to go and attack France. Up to that point France had not had involvement in the conflicts that had begun in the Balkans. Thus the war spread and quickly became a more global conflict.
You got that wrong the answer is
C.
President Lincoln's request for 75,000 Union volunteer forces
During the age of imperialism, European countries competed
to gain new territories to acquire markets and resources to gain wealth and
influence. The more territories one
country control the more powerful their influence grew in world politics and
created conflict as some countries saw others as a threat. When the war ended, many countries were
devastated as lives were lost and the economy suffered. This was especially true to those on the
losing. After many demands were placed
on them, they grew angry and as a result this laid the seeds for the Second
World War.
Zimmerman note, sinking of the Lusitania, General John J. Pershing, and fourteen points were all associated with A. World War I.
Zimmerman note refers to the secret communication between Germany and Mexico, which was intercepted by Britain. Sinking of the Lusitania refers to the event when Germany sank the British ship Lusitania in 1915. General John J. Pershing was an American commander during the WWI. Fourteen points were formed by President Woodrow Wilson about principles for peace.