Putin: If the U.S. breaks nuclear treaty, Russia will too

President Vladimir Putin at the Valdai International Discussion Club. Photo: Alexander Zemlianichenko / AP

Russian President Vladimir Putin said Thursday that Russia would "respond immediately and symmetrically" if the U.S. broke the intermediate-range nuclear forces treaty, according to Reuters.

Per Reuters, Putin said that "Moscow is ready to develop new weapons systems, both nuclear and non-nuclear, in response to other countries doing the same."