1: Russia had a difficult time fighting in WWI due to various reasons. Firstly, the Russian military was ill-equipped and lacked proper resources, leading to shortages of weapons, ammunition, and supplies. Additionally, the Russian army suffered from poor leadership and a lack of coordination, which further weakened their war efforts. The harsh conditions on the Eastern Front and the high number of casualties also contributed to public discontent. These factors, combined with economic hardships and food shortages on the home front, created a sense of disillusionment among the Russian people, leading to widespread protests and ultimately the Russian Revolution of 1917.
2: The "war guilt" clause in the Treaty of Versailles placed full blame for the outbreak of World War I on Germany and its allies. It held them responsible for the damages caused during the war and required them to pay reparations. Whether it was fair or not is a matter of perspective. Some argue that it was fair to hold Germany accountable for the war due to its aggressive actions and violation of international agreements. Others believe that the clause was overly harsh and punitive, leading to economic instability and contributing to the rise of resentment and extremism in Germany. Ultimately, the fairness of the clause depends on the context and the perspectives of those involved.