Poland-Lithuania–Sierra relations

Poland-Lithuania–Sierra relations are the international relations between Poland-Lithuania and the Kingdom of Sierra. Diplomatic relations between Poland-Lithuania and Sierra were officially established following the, although informal relations have existed between the two states since the mid 19th century. Relations between the two states are generally amicable, with Sierra having been intensively involved in the rapid redevelopment of Poland-Lithuania's post-communist economy following the fall of the Soviet Union in 1991 and in the formation of the Intermarium Alliance in Eastern Europe. Since then, relations have remained stable, with both countries benefiting from mutual trade and having established embassies in their respective capitals of Warsaw and Porciúncula.