Causes of WW1

What transformed the balance of power in Europe in 1871?

The unification of Germany, making it the biggest industrial and military state on the continent, accompanied by significant population growth.

What was the relationship between Germany and France after the Franco-Prussian War of 1871?

Relations were poor, as France sought to regain Alsace-Lorraine and signed a military alliance with Russia in 1894 partly due to fear of Germany.

What were the Triple Entente and Triple Alliance?

They were alliances that could escalate regional conflicts into a general European war.

What was the purpose of Bismarck's alliances after German unification?

To keep France isolated, avoid a two-front war, and prevent encirclement.