What is the best definition you can infer for the word "arbitrary from the excerpt above?

The hutu militia group responsible for carrying out widespread murders in rwanda in 1994 was a. the rpf b. the habyiramana c. the interahamwe d. the nazis

Match the following: 1. empirical the belief that an idea should be evaluated based on how it works 2. fundamentalism knowledge based on observation and experiment rather than theory 3. obtrusive to intentionally force ideas or intrude on others 4. pragmatism not religious or spiritual in nature 5. secular a religious doctrine that emphasizes a return to rigid principles

How do you think american life would change greatly, as soldiers went to war in europe?