How did the way the war was fought differ on the eastern and western fronts?

The Eastern Front of World War I saw more mobile warfare, with larger troop movements and more open terrain, allowing for significant advances and retreats, as exemplified by battles like Tannenberg. In contrast, the Western Front was characterized by trench warfare, resulting in a stalemate with extensive networks of trenches and heavy artillery, leading to brutal, prolonged battles like the Somme and Verdun. This difference in terrain and military strategy led to distinct experiences for soldiers and varying consequences for the war's progression.