Mustafa Nayyem, the top official overseeing Ukraine’s defense fortifications and reconstruction efforts, announced his resignation on Monday. The news marks the latest high-profile departure that has shaken Western confidence in Ukraine’s government. Nayyem, who resigned alongside two other officials in Ukraine’s Restoration and Infrastructure Development agency, claimed his work was being undermined by the government. [time-brightcove not-tgx=”true”] Nayyem told the Financial Times that prior to his resignation, Prime Minister Denys Shmyhal prohibited him from attending the annual Ukraine Recovery Conference on June 11 and 12 in Berlin.