This production of "The U.S. Army In Action" begins with America struggling to understand its place in the world while WWI rages in Europe and ends with the United States, now a world power, pushing the communists out of South Korea. Follow the history of the U.S. Army as they come into their own during the horrific fighting of WWI and blossom into the greatest army in the world during the terrible years of warfare in WWII and Korea.