The Northwest Ordinance, was enacted when the Northwest Territory was created to make it a legal territory. It also established the ability of the U.S government to expand westward.
Explanation:
The "containment policy" was the U.S. approach to containing, or preventing, the spread of Communism after World War II. The idea was to make other countries prosperous enough to avoid the temptation of communism.
I think its the first one
