US President Barack Obama has addressed the US public live from a military base in Afghanistan on the anniversary of Osama bin Laden's death.
President Obama reiterated the timetable for a US withdrawal from Afghanistan and signed an agreement with Afghan President Hamid Karzai, which will see US forces significantly reduced.
President Obama flew to Afghanistan despite his schedule showing that he was due to be in meetings all day.
His mission was to sign a key agreement with President Karzai.
The agreement foresees the end of the US war effort in that country, but also outlines what will come after that.
The vast bulk of forces will leave at the end of 2014. US soldiers will continue to serve there, but in much smaller numbers.
Mr Obama said that the US would not build a permanent presence in Afghanistan. It would be there in small numbers supporting an independent government.
The agreement and the address came a year to the day since US forces killed Osama bin Laden, and at a key juncture in the US presidential election campaign which is starting to intensify.
Six killed in suicide attack
At least six people are reported to have been killed in a large suicide car bomb explosion in eastern Kabul that took place shortly after President Obama left.
The Afghan Taliban claimed responsibility. It said it was reacting to Mr Obama's visit and the ten-year Strategic Partnership Agreement he signed.
Police say the blast targeted a housing compound for westerners in the city.
