Kabul, March 5 (RHC)-- New data from the Afghan government shows Afghan forces have borne the brunt of the U.S.-led invasion, with nearly 14,000 Afghan soldiers and police killed in the war, a far higher toll than previously known.

Most of the deaths happened in the past three years as the United States transferred more authority to the Afghans. More than 16,000 Afghan forces were wounded. The Afghan death toll is four times higher than that of the U.S.-led coalition, which has seen more than 3,400 soldiers killed, about 2,300 of them Americans.

The report follows Afghan President Hamid Karzai’s statement to The Washington Post that "Afghans died in a war that’s not ours." President Karzai has so far refused to sign a deal to keep U.S. troops in Afghanistan beyond 2014, leading Obama to threaten a total withdrawal.