President Barack Obama met Monday evening with his national security team to finalize a plan to dispatch some 34,000 additional U.S. troops over the next year to what he's called "a war of necessity" in Afghanistan, U.S. officials told McClatchy.

Obama is expected to announce his long-awaited decision on Dec. 1, followed by meetings on Capitol Hill aimed at winning congressional support amid opposition by some Democrats who are worried about the strain on the U.S. Treasury and whether Afghanistan has become a quagmire, the officials said.