Afghan President Hamid Karzai said the US needs to bring peace to Afghanistan before he will sign a security deal enabling Washington to keep troops in the country beyond next year.
Karzai rejected calls by Afghanistan's council of tribal elders - the Loya Jirga - to sign the security deal.
He told the assembly: "If there is no peace, then this agreement will bring misfortune to Afghanistan.
"Peace is our precondition. America should bring us peace and then we will sign it."
More top news
An Olympic silver-medallist at London 2012 has won gold after the 'winner' was stripped of his award.
Five migrants have died and more than 500 rescued after an overcrowded fishing boat capsized off the coast of Libya, the Italian navy said.
A Muslim Bataclan survivor has critised The Eagles of Death Metal frontman for saying the attacks were part of a Muslim conspiracy.