WORLD HISTORY

Detailed explanation-1: -Austria-Hungary, with German encouragement, declared war on Serbia on 28 July. Russia’s support of Serbia brought France into the conflict. Germany declared war on Russia on 1 August and France on 3 August.

Detailed explanation-2: -On 28 July 1914, Austria-Hungary declared war on Serbia. The declaration of war was made after Serbia rejected the terms in an ultimatum sent to them by Austria on July 23, after Archduke Franz Ferdinand, heir to the Austria-Hungary throne, had been assassinated by Serbian student, Gavrilo Princip, in Sarajevo.

Detailed explanation-3: -The conflict began with the assassination of Austro-Hungarian Archduke Franz Ferdinand by a member of a Serbian independence group on June 28, 1914. Official declarations of war began with Austria-Hungary’s declaration of war on Serbia one month later.

Detailed explanation-4: -The dispute between Austria-Hungary and Serbia escalated into what is now known as World War I, and drew in Russia, Germany, France, and the British Empire. Within a week, Austria-Hungary had to face a war with Russia, Serbia’s patron, which had the largest army in the world at the time.

Detailed explanation-5: -On July 28, 1914, one month to the day after Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo, Austria-Hungary declares war on Serbia, effectively beginning the First World War.