(Reuters) - U.S. President Donald Trump on Monday rejected the idea of talks with the Taliban after a series of deadly attacks in Afghanistan, in an apparent contradiction of his own strategy to end America's longest foreign war.

Trump condemned the militant group for the carnage in Kabul and pledged to "finish what we have to finish."

Trump's comments suggest he sees a military victory over the Taliban, an outcome that military and diplomatic officials say cannot be achieved with the resources and manpower he has authorized.

When he announced an increase in U.S. troops to Afghanistan in August, U.S. officials said the goal was to force the Taliban to negotiate a political settlement.

"I don't see any talking taking place," Trump told reporters as he began meeting at the White House with members of the United Nations Security Council.