U.S. Secretary of State Rex Tillerson on Monday declared that the nerve-agent attack on a former Russian spy in the United Kingdom will “trigger a response,” adding that “clearly” Russia was responsible. British Prime Minister Theresa May said on Monday that it was “highly likely” that Russia was behind the attack, and she gave the Kremlin 48 hours to provide an explanation, or else “we will conclude that this action amounts to an unlawful use of force by the Russian State against the United Kingdom.”
