Vladimir Lenin became the leader of Soviet Russia after Tsar Nicholas II was overthrown during the Russian Revolution. Lenin wanted Russia out of the war, so he made peace with Germany. The United States was never an official member of the Allies, but called itself an "Associated Power."

Background:
Tsar Nicholas II was the ruler of Russia during World War I. He ascended to the throne in 1894 and reigned until his abdication in 1917. Nicholas II was the last Tsar of Russia and his reign was marked by significant political and social turmoil.

Key Points:
- Role of Tsar Nicholas II: Tsar Nicholas II played a crucial role in leading Russia during World War I. He was the commander-in-chief of the Russian military and made important decisions regarding the country's involvement in the war.
- Outbreak of World War I: World War I began in 1914 when Austria-Hungary declared war on Serbia. This event triggered a series of alliances and mobilizations among European nations, leading to a full-scale global conflict. Russia, as a member of the Triple Entente, joined the war in support of Serbia.
- Russian Army: Under Tsar Nicholas II's command, the Russian army mobilized millions of soldiers to fight on the Eastern Front against the Central Powers, primarily Germany and Austria-Hungary.
- Challenges and Failures: The Russian military faced numerous challenges and failures during the war. The army was ill-prepared for modern warfare, lacking adequate supplies, training, and leadership. This resulted in significant casualties and defeats, contributing to the overall discontent among the Russian population.
- Internal Unrest: As the war continued, internal unrest grew in Russia. The strain of the war, coupled with socio-economic issues, led to widespread dissatisfaction among the population. Strikes, protests, and food shortages further destabilized the country.
- February Revolution: In 1917, the situation in Russia reached a breaking point. A series of strikes and demonstrations in Petrograd (now St. Petersburg) culminated in the February Revolution. As a result, Tsar Nicholas II abdicated the throne, ending centuries of Romanov rule.
- Impact: Tsar Nicholas II's leadership during World War I was marked by military failures and growing discontent among the Russian population. The war exacerbated existing issues and ultimately contributed to the downfall of the Russian monarchy.

Conclusion:
Tsar Nicholas II was the ruler of Russia during World War I. His leadership during this time was fraught with challenges and failures, which ultimately led to the downfall of the Russian monarchy. The war further destabilized the country and fueled the discontent that ultimately led to the February Revolution and Nicholas II's abdication.

Tzar Nicholas 2 was the ruler of Russia during World War 1...