Answer: Japan
Explanation: On December 7, 1941, Japan staged a surprise attack on Pearl Harbor, decimating the US Pacific Fleet. When Germany and Italy declared war on the United States days later, America found itself in a global war.
I would say answer number 4
2% I think... I’m sorry if it’s wrong
Expansionist justified the idea of Manifest Destiny because they said they were spreading democracy. They wanted everybody to be live like they do and to be democratic and what better way to do that than by spreading the word to the people living on the land that they already conquered.
The sit down strike changed the United Automobile Workers from a collection of isolated locals on the frill of the industry, into a major labor union. Leading to the unionization of the domestic United States automobile industry.