Dwight Eisenhower's experience with Cold War containment was born directly from the Second World War, in the sense that his objectives seemed very clear. By the time Nixon came to office, it was less clear about how the US should deal with the USSR, and it showed in Nixon's policies.
Between it and the Treaty of Mendota, the Dakota were to cede 35 million acres of land at 12 cents an acre in exchange for $3,750,000 to be paid over time—money that they never received.