Ukrainian President Volodymyr Zelenskiy has dismissed his country's ambassador to Britain without giving reasons for the move. Zelenskiy's decree on the removal of Vadym Prystayko from the post appeared on the presidential website on July 21. Last week, Prystayko publicly chided Zelenskiy for his "unhealthy sarcasm" when the Ukrainian leader criticized a statement by British Secretary of State for Defense Ben Wallace about Kyiv's "insufficient gratitude" over military assistance being received during the war with Russia.