At a press conference held soon after the armed clash, US Secretary of Defense James Mattis refused to discuss the matter, which he referred to as “perplexing”. Bloomberg said at the time that American officials were “in talks” with Russian counterparts “in search of an explanation for what happened”. On Thursday, however, Pompeo appeared to acknowledge that US troops killed hundreds of Russians in Deir al-Zour. The outgoing CIA director was speaking before a committee of the US Senate, during a hearing pertaining to his nomination to serve as the next US secretary of state. He was making the point that the administration of US President Donald Trump had maintained a hardline policy on Russia. After referring to the recent expulsions of 60 Russian diplomats from the US, Pompeo said: “in Syria, now, a handful of weeks ago the Russians met their match. A couple of hundred Russians were killed”.