The U.S. special envoy to Afghanistan and Pakistan, Richard Holbrooke, spoke to German news magazine Spiegel about Washington's goals in Afghanistan, President Obama's new war strategy and the prospects of handing over responsibility to the government in Kabul.

SPIEGEL: You were part of President Johnson's Vietnam team, you even wrote some parts of the Pentagon Papers, which uncovered the real history of the Vietnam War. What have you learned from that experience and can you draw on in your current job?

Richard Holbrooke: I was a very young man when I worked on Vietnam between 1963 and 1969. I worked in the field and in the Johnson White House, as well as being a member of the negotiating team in Paris. I watched people confront great decisions, and from that close observation, I think I learned how to approach such difficult moments and try to analyze them.

SPIEGEL: With that experience in the back of your mind, do you think it really pays for the United States to fight wars in far-off and unstable lands, especially those that have acquired a reputation for being a "graveyard of empires?"

Holbrooke: Of course it's difficult to fight in Afghanistan. But it's necessary because of 9/11. That is the core difference between Afghanistan and Vietnam. We're not in Afghanistan to build a perfect democracy. We know these were not perfect elections. But we must go ahead, we must help the Afghans strengthen their own capabilities. We're not there to take over the country, we're there to help the Afghans build their own capacity so that their security forces can replace the international forces over an acceptable period of time.

SPIEGEL: Has the thought crossed your mind, even for a brief moment, that American troops might leave Afghanistan the way the Soviets left Afghanistan, namely defeated?