Answer:
Andrew Jackson's presidency was from 1829 to 1837, and historians generally regard the Jacksonian Era as an extremely important period in the nation's history. The three greatest challenges President Jackson faced were the Eaton Affair, Indian Removal, and Nullification.
Explanation:
Okay I only know 2 things: The sinking of the Lusitania and Zimmerman Telegram. What started the war the ruler of the ottoman empire was assassinated and what expanded the war was the Zimmerman telegram.
Which front are you asking about
