What is the difference between a primary and a secondary source

Why did reconstruction polices split the women’s suffer age movement?

What does the document of the birtish octopus is an uderlying cause of the world war 1

Two gymnastics teams are intense rivals. the first team has started recruiting new gymnasts from different cities and even foreign countires in an effort to build a stronger team. after learning this, the secondteam begins its own recruitment campaign to find better gymnasts. over a period of months, each team recruits dozens of players, each time trying to find a better recruit than its rivals most recent addition. which idea from the cold war is most similar to this scenario