Russia's foreign ministry has revealed that it has ordered the UK defense attaché out of the country in a tit-for-tat move after the UK expelled Moscow's defense attaché this month, alleging he was 'an undeclared military intelligence officer.'

Russia retaliated on Thursday, ordering the British defense attaché to leave the nation in retaliation for the UK's most recent diplomatic actions against Moscow.

"The defense attaché at the British Embassy in Moscow, A. T. Coghill, has been de...