U.S. Deputy Secretary of State Wendy Sherman, left, and her counterpart Russian Deputy Foreign Minister Sergey Ryabkov held nuclear arms control talks in Geneva on Wednesday as tensions flare between Washington and Moscow. (Photo: Agencies)

Senior officials from the U.S. and Russia met in Geneva on Wednesday for nuclear arms control talks, as the relationship between Washington and Moscow grows increasingly thorny.

It was the first tangible outcome from the landmark summit between U.S. President Joe Biden and Russia's leader Vladimir Putin in June, when they agreed to launch bilateral talks "to lay the groundwork for future arms control and risk-reduction measures."
Between them, the U.S. and Russia possess 90 percent of the world's nuclear weapons.