Estonia Eurozone. The European Union Agency for large-scale IT systems is based in Tallinn, which started operations at the end of 2012. Estonia held the Presidency of the Council of the European Union in the second half of 2017. Since the early 1990s, Estonia has been involved in active trilateral Baltic states co-operation with Latvia and Lithuania, and Nordic-Baltic co-operation with the Nordic countries. The Baltic Council is the joint forum of the interparliamentary Baltic Assembly and the intergovernmental Baltic Council of Ministers. Estonia has built close relationship with the Nordic countries, especially Finland and Sweden, and is a member of
History of Latvia the May 15 coup d'état. The Latvian-Soviet peace treaty had set the eastern border between Latvia and Soviet Russia. After 1944 parts of Abrene District were annexed by Russia as Pytalovsky District. Latvia gave up all legal claims to these lands in 2007. During 1919 Estonia had provided military assistance to Latvia on a condition that some of its territorial claims in Vidzeme will be met. This was refused by Latvians and Estonia withdrew its support. Estonian claims centered on Valka district as well as territories in Ape, Veclaicene, Ipiķi and Lode. On March 22, 1920 Estonia and Latvia agreed