North Atlantic Treaty Organisation decided Tuesday to withdraw the accreditation of seven staff at the Russian Mission to North Atlantic Treaty Organisation in response to the row over the poisoning of Russian ex-spy Sergei Skripal and his daughter in Britain on March 4.
Last week, Russian President Vladimir Putin denied that Russia ever even manufactured the poison that was used in the attack on Skripal, a claim since disputed by several former Soviet scientists.
Mattis' statement comes after NATO Chief Jens Stoltenberg earlier in the day announced sanctions against Russian Federation in connection to the poisoning of Skripals, which has been blamed on Moscow.
"The attack in Salisbury was not just an attack against the United Kingdom but an affront to the worldwide rules-based system on which we all depend for our security and wellbeing", Ireland's Foreign Ministry said.
US General Jim "Mad Dog" Mattis has delivered a strong message to Moscow over the poisoning of ex-Russian intelligence officer Sergei Skripal and his daughter.
Russia's foreign minister says the expulsions of Russian diplomats over the poisoning of a former Russian spy in Britain have followed US "blackmail". Commenting on the move, Russian Foreign Minister Sergei Lavrov noted that anti-Russian measures introduced over Skripal case demonstrate how few independent countries remain in the modern world.
British Prime Minister Theresa May says 23 other countries have expelled more than 115 Russian diplomats, including 60 kicked out by the United States. Germany, France, and Poland each expelled four; the Czech Republic and Lithuania each expelled three; Spain, the Netherlands, Denmark, and Italy each expelled two; and Hungary, Sweden, Croatia, Romania, Finland, Latvia, and Estonia announced plans to expel one Russian diplomat each. He said the Russian ambassador in Dublin has been informed that one diplomat from his embassy must leave Ireland.
Also on March 27, British Prime Minister Theresa May told senior ministers that there was still more to be done in Britain's long-term response to Russian Federation. British allies don't have any objective and exhaustive data and blindly follow the principle of Euro-Atlantic unity at the expense of common sense, the rules of civilised state-to-state dialogue and the principles of worldwide law.