Risk and Retaliation at the World Cup and Beyond. On 3/26/2018, the United States joined 20 nations including the UK, Canada, and Italy in what is said to be the largest coordinated expulsion of Russian intelligence officers in history.
Over 100 Russian diplomats were told to leave their foreign postings in response to the poisoning of a former Russian spy living in the UK. Russia promised to retaliate against this “provocative gesture”.