The Polish–Lithuanian War was an undeclared war fought in the aftermath of World War I between newly independent Lithuania and Poland, with fighting mainly in the Vilnius and Suwałki regions, which was part of the Lithuanian Wars of Independence and lasted from May 1919 to 29 November 1920. From the spring of 1920 onward, the conflict happened alongside the wider Polish–Soviet War and was affected by its progress. It was subject to unsuccessful international mediation at the Conference of Ambassadors and the League of Nations.
Insider tip — Grand Spa Lietuva anchors the resort town of Druskininkai, Lithuania's premier spa destination nestled in pine forests on the Nemunas River. The thermal pool complex draws on natural mineral-bearing groundwater in a setting where Soviet-era sanatoriums stand alongside modern wellness hotels and wooden Art Nouveau villas. Snow-tubing and cross-country ski trails start metres from the spa entrance, enabling a full winter wellness-and-sport itinerary.