Did you know that 5 different attacks on United States soil occurred during World War II (other than Pearl Harbor, of course)?  I didn't, either.

The History Channel's website lists the 5 event, with general details, in a post entitled "5 Attacks on U.S. Soil During World War II".  Creative title?  No.  Interesting story?  VERY!!

An attack on an oil field and an old military base on the East Coast; a spy ring; a terrorist group, and Japanese Fire Balloons....  quite an interesting array of attempts to undermine the American morale!

(Hulton Archive/Getty Images)

I thought that it was an interesting read, so, here it is!

(Via History.com)