Czerwone maki na Monte Cassino (red poppies on Monte Cassino) is one of the best-known Polish military songs from World War II, written during the battle of Monte Cassino.
Some of the more poignant lyrics (translated): “red poppies on Monte Cassino, / Instead of dew drank Polish blood. / …. / And the poppies on Monte Cassino / Will be redder having quaffed Polish blood.”  Lyrics by Feliks Konarski, music by Alfred Schütz.