Biological Weapons

US President Joe Biden issued one of his strongest warnings yet on Monday that Russia is considering using chemical weapons in Ukraine. Biden said Russia's false accusations that Kyiv had biological and chemical weapons illustrated that President Vladimir Putin was...

Russia's allegations that Ukraine with U.S. assistance is developing biological weapons will be raised at a United Nations Security Council meeting scheduled for later on Friday. The allegations have been dismissed by Ukraine's President Volodymyr Zelensky and officials in Washinton...