KABUL - Gen. David H. Petraeus, the coalition military commander in Afghanistan, warned Afghan officials Sunday that President Hamid Karzai's latest public criticism of U.S. strategy threatens to seriously undermine progress in the war and risks making Petraeus's own position "untenable," Afghan and U.S. officials told The Washington Post.

Officials said Petraeus expressed "astonishment and disappointment" with Karzai's call, in a Saturday interview with The Washington Post, to "reduce military operations" and end U.S. Special Operations raids in southern Afghanistan that coalition officials said have killed or captured hundreds of Taliban commanders in recent months.

In a meeting Sunday morning with Ashraf Ghani, who leads the Afghan government's planning on transition, Petraeus made what several officials described as "hypothetical" references to an inability to continue U.S. operations in the face of Karzai's remarks.

The night raids are at the heart of Petraeus's counterinsurgency strategy and are key to his hopes of being able to show significant progress when the White House reviews the situation in Afghanistan next month.

Officials discounted early reports Sunday that Petraeus had threatened to resign. But "for [Karzai] to go this way, and at that particular stage, is really undermining [Petraeus's] endeavors," one foreign diplomat in Kabul said. "Not only his personally, but the international community." Several officials in Washington and Kabul requested anonymity in order to discus the issue.

The weekend controversy came days before NATO leaders, including President Obama, are scheduled to hold a summit in Lisbon that will begin to set a timetable for transition - the process of turning portions of Afghanistan security control over to Afghan forces. The summit, which Karzai is to attend, will also set 2014 as a deadline for the end of coalition combat operations there and will showcase a long-term NATO-Afghan partnership.

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