How did world War 1 contribute to the start of the Russian revolution?

World War I exacerbated existing social, economic, and political tensions in Russia, leading to widespread discontent among soldiers and civilians. The war caused severe food shortages, economic hardship, and high casualty rates, which fueled public outrage against the Tsarist regime. Additionally, the failure of the military and the government's inability to manage the crisis diminished support for Tsar Nicholas II, ultimately culminating in the February Revolution of 1917, which led to the abdication of the Tsar and the rise of revolutionary movements.