This painting captures a moment in the Battle of Tetuan, when Spanish and Moroccan troops fought each other as part of the war between those two countries in 1859 and 1860. The Moroccan troops shoot and gesticulate while, on the Spanish side, the presence of cavalry and a canon auger success in this skirmish. Rosales entered this work in a painting contest on this subject, which was won by Vicente Palmaroli. He approached the painting with a very broken palette, giving an unfinished impression. But it is precisely that sketchiness that generates the sensation of immediacy and movement, which is very representative of a part of his oeuvre. This work was aquired for the Museum of Modern Art on 31 may 1916.