Minority groups rally behind what slogan

What was the mame given to the idea that americans should expand across the nation ro the pacific coast

One drawback of voluntary trade is that it a.requires two groups to use a common language b.can make one group dependent upon another for necessary goods c.doesn't occur unless there is a shortage of goods for at least one group d.forces groups to rely on themselves to produce all the goods they need

The world war ii strategy used by the us for attacking japan was called