After world war ii, communist countries in eastern europe formed the a military alliance, and an economic alliance. a. marshall plan; the european recovery program b. north atlantic treaty; nato c. warsaw pact; comecon d. benelux union; the european community

Earths place in space 

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years