History of Latvia Latvian-Polish border was demarcated between 1933 and 1938. The earliest foreign policy goals were securing peace with Soviet Russia and Germany, gaining international recognition and joining the League of Nations. All this was achieved by the efforts of Zigfrīds Anna Meierovics. The hope of union of Baltic countries - Poland, Lithuania, Latvia, Estonia, Finland - faded after 1922. After that Latvia was the most energetic proponent of Baltic unity and Baltic Entente. On November 1, 1923 Latvia and Estonia signed a military alliance, followed by trade agreements. Latvia tried to maintain good relations with regional hegemons Russia and Germany and
Estonia St. Matthew's Day, where Lembitu was killed. In 1219, Valdemar II landed at Lindanise, defeated the Estonians in battle, and started conquering Northern Estonia. The next year, Sweden invaded Western Estonia, but were repelled by the Oeselians. In 1223, a major revolt ejected the Germans and Danes from the whole of Estonia, except Reval, but the crusaders soon resumed their offensive, and in 1227, Saaremaa was the last county to surrender. After the crusade, the territory of present-day Southern Estonia and Latvia was named Terra Mariana, but later it became known simply as Livonia. Northern-Estonia became the Danish Duchy of