What primary challenge did the Allies face in terms of terrain during the Battle of Passchendaele?

The primary challenge that the Allies faced in terms of terrain during the Battle of Passchendaele was indeed the waterlogged fields. This battle, fought in 1917, took place in Flanders, Belgium, an area known for its flat landscape and poor drainage. The heavy rains leading up to and during the battle turned the fields into mud-filled quagmires, making it extremely difficult for soldiers to move and for equipment to be transported. This mud severely hindered military operations, causing delays and impacting morale, as soldiers struggled to navigate the treacherous terrain. Conditions were so bad that many soldiers would become stuck, and it severely affected artillery and logistical support throughout the offensive. The challenging terrain at Passchendaele is often cited as a significant factor in the high casualties and the limited success of the campaign.