ADVERTISEMENT Lithuania has completed the installation of so-called "dragon's teeth" on its border with Russia's Kaliningrad exclave, the Lithuanian Defence Ministry said on Saturday. This is the latest step in a series of defence measures taken by the Baltic country to deter Russian aggression. "We are starting from the tactical level — specific obstacles on the border — and later we will combine the entire engineering plan into one conceptual system," said Raimundas Vaiksnoras, commander of