What factors contributed the Russia's war difficulties?

Several factors contributed to Russia's difficulties in the war, including logistical challenges, inadequate supply chains, and poor planning. The initial underestimation of Ukrainian resistance and the resilience of its military also played a significant role. Additionally, international sanctions and isolation weakened Russia's economy, impacting its ability to sustain prolonged military operations. Lastly, internal dissent and declining morale among troops further complicated Russia's war efforts.