In the majority opinion, Fortas suggest that the reason for the school authorities' actions is that they were uncomfortable with such a controversial topic. According to Justice Fortas school authorities wanted to avoid controversy on the topic of Vietnam war.
They must allow Hitler to believe he has defeated them, and then attack.
They had to reform the Red Army and the Russian air force.
They used camouflage, surprise and misinformation to keep the German army in the dark about their intentions. The retreated Soviets were ordered by Stalin to leave nothing the Germans could use, this was called a scorched-earth policy.
John Muir makes an effective argument for saving the redwoods. He appeals to logic by giving evidence about the destruction. He seems very credible because he knows about the history of individual trees. Finally, he makes readers want to save the trees by using strong emotional language throughout.