NATO occupation soldiers began handing responsibility for security to Afghan forces on Sunday.
NATO occupation soldiers began handing responsibility for security to Afghan forces on Sunday.
Seven parts of the country will be transitioned over the week and could take up to two years to complete.
"A ceremony was held in Bamyan police headquarters today to mark the official transition of responsibilities from foreign forces to Afghan forces," said interior ministry spokesman Siddiq Siddiqi.
The relatively peaceful central mountainous province of Bamyan is a devoutly anti-Taliban area populated by the ethnic Hazara minority.
Western allies has been tired of the long war, with all foreign combat troops are due to leave Afghanistan by the end of 2014 and partial withdrawals are starting this summer.
About 33,000 US occupation troops are going to leave the war-torn country by the end of 2012.
There are around 150,000 foreign troops in Afghanistan; nearly 100,000 are from the United States.
Western officials said the whole process in the seven areas would be closely monitored.
"Transition is a process and it's a condition-based process that's entering its implementation phase," said one NATO official who would not give his name.
"ISAF and the Afghan government will regularly monitor to ensure enough progress so that transition can be completed."