Please help if u put a link i stg

Why was it difficult fpr unions to succeed in the 1800s

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

Explain the reasons for u.s. neutrality during the 1920s and 1930s. how did ideas about neutrality change during the period from the end of world war i to the passage of the lend-lease act? be sure to include any events, terms, or people that may support your response.