Complete the following sentence: During the Peninsular War (1809<unk>1814) in Spain, a number of Polish soldiers fought on the side of Napoleon. <unk> <unk> <unk> <unk> Polish Chevau-léger regiment distinguished itself at the
Battle of Somosierra in 1808<unk> In the early 20th century a number of Polish volunteers participated in the Spanish Civil War on the Republican side and were primarily assigned to the Dabrowski Battalion. In the early 20th century a number of Polish volunteers participated in the Spanish Civil War on the Republican side and were primarily assigned to the Dabrowski Battalion.