The chairs of the House and Senate armed services committees said withdrawing 5,000 service personnel risked undermining deterrence.
Related stories
Hockey nations refuse to play Russia as Germany weighs pulling out as host
US voters back abortion rights and reject Trump's gerrymandering in state ballot measures
Markets react with caution to Democrats' victory in US midterms
DR Congo residents sue Chinese mining giant for widespread pollution
30 million South Africans registered to vote across nine provinces
Portugal: Housing protesters return to Lisbon square after court ruling