The war in Afghanistan has lasted more than 8 years, more than two years longer than WW2. We have been in Afghanistan for about the same time the USSR was, with no end in sight other than that our economy is bankrupt (as happened to the USSR).
That the news is touting a new intense surge in "pacification" (in Tacitus' sense of the word) proves that little real military success has occurred in the last 8 years. 700 military camps spread across Afghanistan are still unable to control the place.
The last military commander to successfully conquer and hang onto Afghanistan was Alexander the Great and he only kept it three years. Afghanistan is called the graveyard of empires and our empire is trapped in it like a dying mammoth sinking into the La Brea tar pits.