What is the main conflict in Skunk Works: A Personal Memoir of My Years at Lockheed by Ben R. Rich?

The book tells of his first experiences at Lockheed during the 1950s at the height of the Cold War. It ranges all the way past the First Gulf War, and describes the many, varied events that occurred and projects that were undertaken at Lockheed's aerospace development wing, The Skunk Works. The first four chapters recount the building of the first stealth bomber.