The united states was called the arsenal of democracy because

"Arsenal of Democracy" was the term used by Franklin D. Roosevelt, president of the United States, when he promised to help the United Kingdom fight Nazi Germany

Therefore, The United States was called the arsenal of democracy because of the collective efforts of the American industry to provide war material to the Allies.

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.

imma say false because i dont know anything about this.