Although the film goes to praiseworthy lengths to be faithful in the accurate recreation of costumes of the era, including uniforms, there are some inaccuracies.
During the assault in the mountains, a pair of Senegalese Riflemen (Tirailleurs Sénégalais) can be seen wearing their recognisable red fez, waistbands and dark blue uniforms. However, the film takes place in 1918 and the colonial soldiers would not have worn this uniform since 1915. Instead they would have worn the same khaki uniforms and Adrian helmets as the rest of the Balkans expeditionary corps, khaki dress that colonial troops would have also worn on the Western Front, to differentiate themselves from the 'Horizon Blue' wearing 'metropolitan' (mainland France) troops.