The two main obstacles that United Sates mine workers faced were 1) Very dangerous conditions, in which many people lost their lives, and 2) A lack of good and reliable pay for their labor.
Answer:
Surprise attack on American soil.
Explanation:
On December 7th 1941 Japan bombed an american naval base known as pearl harbor. Pearl Harbor is close to Japan because it is an island far west of the united states but is considered a state. So it was a attack on American soil by the Japanese air force and kamikaze fighters. After the attack Japan and Germany (+ Axis Powers) Declared war on the United States. But according to Hitlers plans to take over the world he wanted to attack north america last. So technically we can thank the Japanese we are still the United States of america and not speaking German.
I guess it was part of the independence from the British or whatever<span />
They sold for like three years in the time for the supreme court cases