Why did the US realize they first needed to become involved in WWII? A To prevent the Axis powers from taking over America. B To prevent the defeat of the Allies and further Nazi takeover of Europe. C To make the military power of the US known to the world. D To help the Axis powers defeat the Allies.

it seems like c or a would be the best answers but read the information I gave you and see what you think I would go with a because it seems to be closes with what was really going on i hope this helped any.

Explanation:

Japan bombed Pearl Harbor, Hawaii, on December 7, 1941. Before this event, the United States was trying to stay out of the world war. This event brought the isolated United States into WWII. We realized that Japan and Germany were achieving far too many military successes and were beginning to threaten our democracy.

i will get back to you let me look in my notes and i will tell you shortly