While working in Avalanch, singer Víctor García and drummer Alberto Ardines decided to release an album with the songs they had composed in their spare time, as those were not accepted in the band.

[5] García handled lead vocal duties, primary lyricist, main songwriter, bassist, rhythm guitarist, and keyboardist,[6] but received the collaboration of Pablo García and Fernando Mon on the guitar solos, who later became full-time members, along with bassist Alvaro Jardón.

In search of a keyboardist, the band conducted auditions from June 22 to August 12, 2002, recruiting Manuel Ramil.

[6] Japanese rock magazine Karma catalogued WarCry as "a Spanish album that boosts true metal!".

[10] Spanish music critic Rafa Basa said "WarCry is national [Spain] heavy metal, powerful, direct, and convincing!