How did the louisiana purchase change the borders of the united states?

Why did the united states become involved in the soviet-afghan war? the united states wanted access to the afghan oil fields. the united states wanted to retaliate against the soviet boycott of the 1984 olympics in los angeles. representative charlie wilson convinced congress to fund afghan resistance to soviet influence. president ronald reagan wanted to force the soviets to withdraw from afghanistan.

What was the historic border between the united states and mexico?

How does the power of the supreme court act as a check on the other branches of government