The Serbian Expansion and Russian role in the Balkans.
Combined with the increase in Russian military strength, both Austria and Germany felt threatened by Serbian expansion; when Austria invaded Serbia on 28 July 1914, Russian Foreign Minister Sergey Sazonov viewed it as an Austro-German conspiracy to end Russian influence in the Balkans.
On 30 July, Russia declared general mobilization in support of Serbia; on 1 August, Germany declared war on Russia, followed by Austria-Hungary on 6th.
Through laws and tradition
The correct answer is <span>the british freeing american slaves after they mutinied and escaped
Slaves were supposed to be taken to the United States by ship, however, they organized a rebellion and freed themselves and took the ship to the Bahamas which was British territory. Since Britain had banned slavery in its colonies, they let the men go free. When the ship arrived to New Orleans, the Americans were angry because they suffered economic losses due to Britain.</span>
