WORLD HISTORY

Detailed explanation-1: -Austro-Hungary sent an ultimatum to Serbia, and Russia came to the aid of Serbia. Once Russia mobilized, Germany mobilized and attacked France with most of its armies and deployed enough troops along the Russian front to fight a defensive battle.

Detailed explanation-2: -Following the invasion of Serbia, Russia began to mobilize its reserve army near its border with Austria-Hungary. Consequently, on 31st July, German leadership in Berlin demanded Russian demobilization. There was no response, which resulted in the German declaration of war on Russia on the same day (1st August 1914).

Detailed explanation-3: -The Schlieffen Plan’s strategy required that France be defeated swiftly – but this didn’t happen. That failure led to sustained trench warfare on the Western Front. In those grim battles of attrition, such as the Battle of the Somme and the Battle of Verdun, Allied forces ultimately outnumbered the Germans.

Detailed explanation-4: -Germany’s war plan, the Schlieffen Plan, called for it to quickly defeat France and then shift east to fight Russia. Its armies were to sweep down through Belgium and northern France toward Paris, like a giant swinging door.

Detailed explanation-5: -The Schlieffen Plan drawn up in 1905 was the German army’s answer to its central strategic problem: how to win a war on two fronts, against France in the west and Russia in the east.