In March 2018 , 29 Western countries and NATO expelled in total at least 149 Russian diplomats , including 60 by the United States , in response to the poisoning of Skripal and his daughter on March 4 in the United Kingdom , which has been blamed on Russia . Other measures were also taken
poisoning of Skripal and his daughter
Poisoning of Sergei and Yulia Skripal
International sanctions during the Ukrainian crisis