Blood on Blood is the seventeenth studio album by the German heavy metal band Running Wild, their first album in five years since 2016's Rapid Foray.

[1][2] In December 2019, an EP titled Crossing the Blades was released as an early hint for a new album.

[3] Two more singles were released in advance, closer to the album's release date: "Diamonds & Pearls" on 13 August 2021[4] and "The Shellback" on 24 September 2021.

[8] Metal Hammer has noted highlight tracks from the album including "the solid rock ballad 'One Night One Day' as well as the ten-minute bouncer 'The Iron Times 1618-1648', in which Rolf [Kasparek] epically addresses the Thirty Years' War.

"[9] Crossing the Blades promotional EP contains an earlier recording of the EP's title track and the bonus tracks of the Japan edition of Blood on Blood.