The so-called "truman doctrine" was specifically designed to aid

Countries that were trying to resist the spread of Communism.

Explanation:

The Truman Doctrine was a foreign policy by the US government created by President Harry S. Truman.

It started as a pledge to the US Congress by the US President to help Greece and Turkey with financial aid so they could fight against the spread of Communism. What started as a cry for help developed as a foreign policy that to the formation of NATO, a military alliance and to the Cold War.

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.

`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".