The document provides information about the causes and events of World War 1. It discusses several long-term and short-term causes, including the alliance system, imperialist competition, militarism, and the assassination of Archduke Franz Ferdinand. Key events that drew the US into the war are described, such as Germany's resumption of unrestricted submarine warfare, the Zimmerman Telegram, and the sinking of American ships. The document also examines how the war impacted America through the mobilization of women and African American workers and the suppression of dissent through loyalty laws.