Why is Russia rejecting NATO peacekeepers in Ukraine?

Russia has firmly rejected the presence of NATO peacekeeping forces in Ukraine under any peace deal. According to Russian Foreign Minister Sergei Lavrov, President Putin has repeatedly emphasized that NATO expansion and its influence in Ukraine represent a direct threat to Russia's interests and sovereignty. This position was clearly articulated following high-level discussions with United States officials. Russia views NATO's potential presence in Ukraine as a strategic threat rather than a peacekeeping measure. This stance highlights the fundamental geopolitical tensions that complicate efforts to reach a resolution to the conflict.