By the CNN Wire Staff
Ryan Crocker, the U.S. ambassador to Afghanistan, will step down this summer after a year on the job due to health reasons, according to State Department spokeswoman Victoria Nuland.
A statement by Nuland said Crocker confirmed his plan to the Afghan government and the U.S.-led NATO military mission in the country.
Crocker was named as the U.S. ambassador to Afghanistan on July 25, 2011.
This is not Crocker's first stint in Kabul. After the Taliban were forced out of power, Crocker was given the task in 2002 of reopening the U.S. Embassy in the city, according to his State Department biography.
By Barbara Starr
In the latest sign of how strained U.S. and Afghan military relations have become, a senior U.S. official tells CNN, "There is a strong sense inside the Obama administration that the Afghans did not do enough to quell the violence" that has erupted since the burning Qurans and other religious material a week ago.
"We are not going to settle for what has happened to our troops in recent days," the official said. He declined to be identified because of the sensitive nature of the situation. This official has access to the latest intelligence about the situation and is involved in discussions inside the administration.
The U.S. ambassador to Afghanistan, Ryan Crocker, said the Afghans have not been totally absent in trying to stop the violence.
"I think we need to bear in mind that the Afghan security forces, throughout this whole process, have been seeking to quell these demonstrations," Crocker said in an exclusive interview on CNN's "State of the Union."
"They've done so with loss of life on their side as well as some of the protesters, and they have been defending U.S. installations. So they are very much in this fight trying to protect us," Crocker added.
The intense violence following the burning of religious materials by NATO forces will be quelled as Karzai's latest appeal for calm will hopefully quell the violence, the U.S. ambassador to Afghanistan told CNN's Candy Crowley in an exclusive interview that aired Sunday on State of the Union.
"At a certain point it tapers off," Crocker said.
Crocker said the violence, and the Afghan government's seeming inability to stop it, cannot be seen as a reason for the U.S. to pull out of Afghanistan. (Read also about concerns about Afghan military violence against NATO and U.S. troops) FULL POST