It was well reported that The Guns of August by Barbara Tuchman was one of JFK's favorite books. But it was also reported in David Halberstam's The Best and the Brightest that JFK may have sent those 18,000 "advisors" to Vietnam as a direct result of the bullying treatment he received from Nikita Khrushchev in Vienna. It's as if he didn't lean anything from Tuchman's book.
"Those who cannot remember the past are doomed to repeat it." - George Santayana
I've also long held that much of the tragedy of WW I was because military leaders failed to learn from the lessons of the American Civil War where trench warfare had it's seeds.
.PNG)
