A top U.S. official on Monday he could not predict that Afghanistan could take control of its own security and warned that NATO needed at least another year to recruit and train enough troops and police.

An examination by Lt. Gen. Bill Caldwell, head of NATO training mission in Afghanistan, also recommends the U.S. hoping that the American withdrawal next year will be bigger in size.

President Barack Obama has said that the troops will start exiting in July 2011, the size and speed of withdrawal in terms of security. Security officials, including Secretary of Defense Robert Gates, have said they believe summer emergence will be easier.

In the Pentagon newspaper, Caldwell told reporters that the Afghan military and police would not reach a sufficient number until October. 31, 2011 - Three months after the Obama era begins to pull off the U.S. election.

NATO has set a goal of establishing an Afghan army and a police force of 305,600 personnel - 171,600 troops and 134,000 police officers.

There are currently 249,500 workers - 134,000 soldiers and 115,500 police officers.

But Caldwell predicted that desert prices and accidents were so high among Afghan forces that NATO would have to recruit and train 141,000 people to ensure that it had 56,000 additional personnel needed in the future.

With Afghanistan still anxious to recruit and train its security forces, Caldwell said there is no accurate estimate of how long Kabul can take over the country.

"It does not mean in small pockets that they cannot lead with support," Caldwell said of Afghan forces.  just because we haven't finished their development yet."

Caldwell also said it might be the U.S. public. and the international community will have to pay for that power at some point, even if NATO troops leave.

He stated that "the U.S. has made a constant commitment to support."

As was the case in Iraq, the training and slaughter of Afghan security forces are considered a linchpin on the U.S. exit. However, efforts have been particularly difficult in Afghanistan, where levels of illiteracy are rampant, corruption is rampant and there are few banking services to ensure that troops are paid.

Last January, Gates predicted that Afghan forces could take control of security elsewhere by the end of this year. But U.S. journalists and Europe have said the first hand may not happen until early next year.

The NATO summit in Lisbon in November would decide which areas would be deployed first.

Caldwell said there had been significant gains over the last nine months. For example, he said the size of the Afghan army and police has more than doubled in rank in previous years.

Caldwell said recruitment and retention have been aided by an increase in salaries, especially for Afghan police, and also a "new sense of urgency" by the Afghan government for increasing hiring.

The U.S. has also deployed additional police and military trainers to Afghanistan, much to the extent of the strong deficit that dominated NATO meetings last fall, said, Caldwell.

However, problems remain. Caldwell said that less than 18 percent of Afghan troops are able to count, preventing many soldiers from detecting the number of troops behind their weapons or performing other basic tasks.

Illiteracy has also prevented some Afghans from earning their income through an electronic banking system, set up by NATO to reduce the risk that fraudulent officials could mislead...

Caldwell said another 27,000 people were included in NATO's literacy program - a number he hopes will grow to 100,000 by next summer.

Another major issue is attraction. Caldwell said the rate of attracting the Afghan police force was 47 percent. The number dropped 70 percent last year but is still "unacceptable," he said.