What makes up the soil of the plaouse hills region and how was it deposited

The loess or silt blown by wind makes up the soil of the Palouse hills region. Palouse is actually a region that is present in the northwestern part of the united states of America. it encompasses the huge area that includes the north and central Idaho and southeastern part of washington

To have a bunch of countries to team up, and communicate not let the communist break them apart and take over the world