RNA - "Short answer is yes," Esper replied to a question if the Pentagon contemplated having a minimal footprint in the country purely for the purposes of fighting terror, RIA Novosti reported.
Milley stated that the United States has "multiple options" and a smaller footprint is one of them.
He promised to provide specific figures at the closed-door section of the hearing at the House of Representatives Armed Services Committee.
The United States is believed to have up to 14,000 troops in Afghanistan, with most of them training and assisting local forces.
"Our military strategy in Afghanistan is to continue to deny Afghanistan as a safe haven for terrorist attacks on our homeland," Milley added.
According to Fars News Agency, he spoke in favour of engaging the Taliban movement in a political process to end this war.
Addressing the panel, Esper advocated "responsible" troop withdrawals from various regions to reallocate them to countering Russia and China.
Earlier in December, he stated that cutbacks in US troop numbers in Afghanistan are "not necessarily" dependent on a peace deal with the Taliban.
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