“Aside from the biannual data exchange, the US continues to provide all required notifications under the New START treaty, and we're carefully assessing the national security impact of Russia's failure to comply with its notifications and other treaty obligations,” Patel said during a press briefing.
Earlier on Tuesday, Assistant Secretary of Defense for Space Policy John Plumb said that Russian defense officials during their interaction on Monday with US counterparts said that Moscow would not exchange semi-annual data with Washington in line with the New START treaty.
As a countermeasure, the United States has decided that it will also not provide the semi-annual data on high-level numbers back to Russia, Plumb said.