I sorry these guys but they are partisans and in a war be partisan in civil clothes fight against uniform wearing soldiers,just the same be a terrorist.
The only problem with your stance, my dear Mr. Imi, is the inexorable legal fact that previously presented actions against completely non-combatant civilians represented a direct violation of the Hague CONVENTION RESPECTING THE LAWS AND CUSTOMS OF WAR ON LAND, entered into force on the 26th of January, 1910, namely its article Article 50, which straightforwardly declares:
No general penalty, pecuniary or otherwise, can be inflicted on the population on account of the acts of individuals for which it cannot be regarded as collectively responsible.
Do you have, by any chance, any legally acceptable and undeniable evidence that those casualties of the Wehrmacht in 1941 were consequences of the collective activity of the whole civilian population of Kragujevac, thus providing legally based accountability for those civilians? If you have, please – present those proofs to us here.
In the meantime, I will ask you for a simple favor. Please observe very carefully the subsequently presented snapshots. You will see one highly explicite scene which was connected with the execution of the unfortunate personality who - on the approach of the enemy forces – had spontaneously took up arms to resist the enemy troops without having time to organize herself in complete accordance with Article 1 of the Hague Convention, but nevertheless carried arms openly and otherwise completely respected the codified laws and customs of war.
Execution of the captured Partisan by decapitation – No.1
Execution of the captured Partisan by decapitation – No.2
After that, we will have a nice little academic chat about everyday significance of the Aristotelian as well as Christian ethics in war.
In the mantime, as always – all the best.