Question

Are there any policies for Manifest Destiny?

Because I couldn't find any except expansion on wiki.

Answer 1

The policies of Manifest Destiny were the expansion across the North American continent, from the Atlantic seaboard to the Pacific Ocean.

Answer 2

So that's the only policy?

Answer 3

and Manifest Destiny's importance in conveying a major theme of our history at the time would be the same?

Answer 4

The major theme was the arrogance that the U.S. had the right to grab and control any land it wanted -- especially if it was contiguous to the existing nation.