Final answer:
The Confederation Congress struggled to manage the Northwest Territory due to its remote location, unresolved Native American land issues, and international disputes which highlighted the need for a more robust federal government.
Step-by-step explanation:
The Northwest Territory presented significant challenges for the Confederation Congress to manage effectively. Geographically, the territory was vast and remote. It was located north of the Ohio River Valley and west of the Appalachians, creating logistical and communication difficulties. The distance from the eastern centers of power and governance made oversight complex. Additionally, the region's dynamics, including unresolved issues with Native American lands, international disputes, and the subsequent Northwest Indian War, added layers of complexity to governance, highlighting the weaknesses of the Confederation Congress and the need for a stronger national government. These difficulties in managing the territory ultimately led to the establishment of federal government control over territories and highlighted the necessity of a stronger, more centralized government as emphasized by the Constitution.