Murtha should read Paul Fussell's The Boys' Crusade : The American Infantry in Northwestern Europe, 1944-1945 to understand how well the plan for liberating Europe went.
Here's a quote from Bill Marsano's review on Amazon,
And here it is his [Fussell's] contention that behind and beneath all that "greatest generation" nonsense was the Boys' Crusade--that last year of the war in Europe when too many things went wrong too often. The generals who'd convinced themselves that this war would not be a war of attrition--i.e., human slaughter--like the last one found they'd guessed wrong. Casualties were horrifyingly high and so huge numbers of children--kids 17-19 years--old were flung into combat. And they were, with the help of the generals, ill-trained, ill-clothed and ill-equipped.