In 1922 , after a disputed election , Central Lithuania was annexed by the Second Polish Republic , and Zalavas was incorporated into the Wilno Voivodeship .
In 1920 following the Polish -- Lithuanian War , the area became part of the Republic of Central Lithuania .
In 1922 , after a disputed election , Republic of Central Lithuania   was annexed by the Second Polish Republic , and Zalavas was incorporated into the Wilno Voivodeship .
In 1920 following the Polish -- Lithuanian War , the area became part of the Republic of Central Lithuania .