The statement that does not portray an ongoing mission of NATO is: Contain communism to Eastern Europe.
What is NATO?
The North Atlantic Treaty Organization, also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 countries, of which 28 are in Europe and the other 2 in North America.
They usually have ongoing missions to execute at every point in time. But containing communism to Eastern Europe is not one of the ongoing missions.
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