 At the height of the Crimea Crisis, in May 2014, he visited Moscow and met with the Russian foreign minister Lavrov and deputy prime minister Dmitry Rogozin, whose name Slovak diplomats had previously unsuccessfully tried to erase from the EU sanctions list.Rogozin and Lajčák were co-chairs of a joint Slovak-Russian cooperation body.In November 2015 Lajčák's Slovakia voted against Kosovo's membership in UNESCO.