This new weapon was used by United States on the Japanese mainland to end WWII

By choosing to resupply fort sumter, abraham lincoln risked a. abandonment of the fort by union soldiers. b. abandonment of the fort by confederate soldiers. c. the appearance of giving in to confederate secession. d. armed conflict with southern soldiers.

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?

Describe the government under, and powers given by, the articles of confederation.