Ending America's longest war - Lara Logan reports from Afghanistan on the future of the country as the U.S.-led coalition draws down its forces

Navigating the end of the longest war in American history is the job of General John Campbell, the last four-star general of the war.

His mission is making sure that after the U.S. withdraws from Afghanistan, the Afghan Security Forces do not go the way of Iraq where territory that was fought over and won by the U.S. at great cost was lost because the Iraqi military wasn't strong enough to hold the enemy back.

Could the same thing happen in Afghanistan? The U.S. combat mission officially ended on December 31st, but in a sign the Afghans need more time, the U.S. agreed to still play a limited role on the battlefield. Under Gen. Campbell's command, American forces will fly combat operations for Afghan troops when needed and U.S. Special Operations Forces will continue to hunt down al Qaeda with their Afghan counterparts. But, after 13 years of fighting, the war as Americans have known it is over. 

America's longest war is being reduced to dust and rubble. You can see it here at Bagram Airfield...half the base is gone. Barracks, where soldiers slept, torn down. Bunkers bulldozed into piles of sandbags.

Equipment and vehicles shipped out at a relentless pace and close to 300 U.S. bases shut down to meet the deadlines set by President Obama. Much of what is left now belongs to the Afghans.

Pres. Ashraf Ghani: If both parties, or, in this case, multiple partners, have done their best to achieve the objectives and progress is very real, then there should be willingness to reexamine a deadline.

President Ghani had strong words for the nation's enemies.

Pres. Ashraf Ghani: Do not ever threaten an Afghan with violence. We will rise as one and we will face every threat the way we have taken on thousands of previous armies and conquerors. This is the moment of destiny. Work with us to transform Asia but should you threaten our existence everybody will be destroyed, not just us.  

Pres. Ashraf Ghani: --of my ancestor guide us. This country was not the gift of anyone. It is the results of millions of people sacrificing. What did we have? Our bare hands.  

Lara Logan: The Pakistanis protect their leadership. They allow them to recruit. They allow them to rest.

Gen. John Campbell: I agree. You know, I'm not gonna tell you that I'm a friend of Haqqani here and that Pakistan is not providing them sanctuary. They are. We've known that for years.

Pres. Ashraf Ghani: We'll either sink together or swim together. We've both become mutually vulnerable and we both need to understand that stability in one isn't conceivable without the stability in the other.

Lara Logan: Can you understand the skepticism, though, given Pakistan's actions here?

Pres. Ashraf Ghani: Skepticism is part of your job. The job of an elected president is to overcome the past and change the playing field. My people are bleeding. It is precisely because of that that I need to make sure that peace comes.  

Lara Logan: Are you concerned about the rise of the Islamic State and what threat that could pose here?

Pres. Ashraf Ghani: Yes. Yes. Because the past has shown us that threats, that networks change their form.

Lara Logan: But their ideology hasn't changed.  Pres. Ashraf Ghani: Their ideology gets more radical.  Read More at cbsnews

"Do not ever threaten an Afghan with violence" - 60 Minutes
Ending America's longest war

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