Here’s Why America Keeps Flying a Half-Century-Old Bomber

North Korea sets off a nuclear bomb and how does the U.S. respond? The Pentagon sends a half-century-old airplane to buzz Korean airspace.

It wouldn’t make a lot of sense if the warplane wasn’t the B-52 bomber. Designed in the aftermath of World War II, obsolete nearly before the last one rolled off the line in 1961 — the Stratofortress may remain in the air for another 25 years.

In this episode of War College, we look at why the B-52 is still flying and what makes it so hard to replace.