Polish Underground State
The Underground State also became officially recognized by the Polish government, local authorities and the community, with most major cities in Poland erecting various memorials to the Underground State affiliated resistance. In Poznań, there is a dedicated Polish Underground State Monument erected in 2007. On 11 September 1998 the Sejm (parliament) of Poland declared the day of 27 September (anniversary of the founding of the Service for Poland's Victory organization) to be the Day of the Polish Underground State.