After Pearl Harbor, and the destruction of Americas battleship fleet, the entire west coast of America lay wide open for invasion. The Japanese had already invaded China so the idea of invading America was not a far-fetched concept to them.
The Japanese emperor requested plans for an invasion, but Admiral Yammamoto rejected the idea, and for good reason.
I often ask gun control advocates, "Can you guarantee that tomorrow, 10 years from now, 100 years from now or even 200 years from now, that our freedoms will never be in jeopardy?"
The typical answer is "Oh, that could never happen."
Well history says otherwise and if that terrible day ever comes, unlikely as it might be, I want myself, or my sons, or their offspring, to be able to fight with modern weapons. The last thing we want is to be like Europe or Japan where firearms ownership is either severely restricted, or completely banned.
Much like the WWII time frame, if evil ever came to their shores, those citizens would be as unable to defend their freedoms today as they were in the 1930's. You would think they would had learned their lessons from the mistakes of history past.
This is something to think about as our government ponders removing modern firearms from its citizens.
Chicago has a 100% gun ban and more people died in Chicago via gun violence in 2012 than did the coalition forces in Afghanistan.