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WARSAW — Expressing growing US impatience, Defense Secretary Chuck Hagel said Thursday that he does not know what to believe about new assurances from Afghanistan that President Hamid Karzai is moving closer to signing a pact to keep American troops in his country next year as advisers.
‘‘What is coming out of the presidential palace today, or what President Karzai says today, I don’t know,’’ Hagel said at a news conference in Warsaw. ‘‘It changes constantly.’’
Hagel pointedly noted that Karzai had ‘‘agreed — personally agreed — to the bilateral security agreement’’ negotiated between the two nations last year, yet continues to balk at signing it.
The deal would allow some US service members to remain and keep training Afghan soldiers after most of the 39,000 troops now there withdraw. The 12-year-old US combat mission is set to end in December.