Between what two states does the valley the Ojibwe ceded their rights to by the Treaty of Old Crossing form the border?
Minnesota and North Dakota
Title: Quasi alliance
Passage: Quasi alliance is a relationship between two states that have not formed an alliance despite sharing a common ally.  These two states may remain unallied due to alliance hindrances such as historical animosity but still share a common, powerful ally capable of diminishing the two states' security fears due to a common threat.  Japan-Korea relations may be referred to as a quasi alliance as the two states remain unallied, but share a common threat, North Korea, and a common ally, the United States.  The two states remain unallied mainly due to historical animosity rooting from the period of Japanese colonialism.
Title: Red River Valley
Passage: The Red River Valley is a region in central North America that is drained by the Red River of the North; it is part of both Canada and the United States.  Forming the border between Minnesota and North Dakota when these territories were admitted as states in the United States, this fertile valley has been important to the economies of these states and to Manitoba, Canada.
Title: Treaty of Old Crossing
Passage: By the Treaty of Old Crossing (1863) and the Treaty of Old Crossing (1864), the Pembina and Red Lake bands of the Ojibwe, then known as Chippewa Indians, purportedly ceded to the United States all of their rights to the Red River Valley.  On the Minnesota side, the ceded territory included all lands lying west of a line running generally southwest from the Lake of the Woods to Thief Lake, about 30 mi west of Red Lake, and then angling southeast to the headwaters of the Wild Rice River near the low-lying divide separating the watershed of the Red River of the North from the watershed of the Mississippi River.  On the North Dakota side, the ceded territory included all of the Red River Valley north of the Sheyenne River.  The total land area, roughly 127 mi wide east to west and 188 mi long north to south, consisted of nearly 11000000 acre of rich prairie land and forests.
Red River Valley Treaty of Old Crossing