The 2S1 Gvozdika is a Soviet self-propelled howitzer introduced in 1972 and in service in Russia and other countries as of 2023. It is based on the MT-LBu multi-purpose chassis, mounting a 122 mm 2A18 howitzer. "2S1" is its GRAU designation. An alternative Russian designation is SAU-122, but in the Russian Army it is commonly known as Gvozdika. The 2S1 is fully amphibious with very little preparation, and once afloat is propelled by its tracks. A variety of track widths are available to allow the 2S1 to operate in snow or swamp conditions. It is NBC protected and has infrared night-vision capability.

The Land Forces are the land forces of the Polish Armed Forces. They currently contain some 100,000 active personnel and form many components of the European Union and NATO deployments around the world. Poland's recorded military history stretches back a millennium – since the 10th century. Poland's modern army was formed after Poland regained independence following World War I in 1918.