the troops of the adversary (archer, rider, etc. .), etc. We also present several scenarios that can occur during the battle: overcrowding of the enemy, overrun, loss of morale of the troops, etc. As well as several directives concerning the line and the formation of the army during the battle: line not too extended, not too thin, too far apart. Chapter XV- On Besieging a Town This part evokes some instructions or advice and some war machines that can be used during a siege. These tips are grouped into two parts. When besieging, it is important to fortify oneself against the besieged or their allies, to set up a guard for these same reasons, to put troops in front of the gates and posterns, enemies, an attack in multiple places tires out. opponent and it is essential to check whether the enemy's supply routes (living and water) are cut or exploited, etc. After the siege, it is important to treat people gently in order to gain their affection. While as a defender, it is necessary to amass as much food as possible, to expel the useless mouths (women, children and the elderly) from the city, it is necessary to avoid any dissension among the people remaining in the fortress, the gates will be guarded by the most faithful people, etc. Finally, in both cases, the leader must give as much effort as his soldiers to motivate them and give them speeches that support their morale. Chapter XVI-On the Actions after the War is Concluded After a victory, it is described that it is important to give thanks to God for it, to reward those who fought with courage and on the contrary to punish the cowards (as much the soldiers as the officers or a whole body). Loot can be sold, instead of being distributed as a reward, to cover expenses. Prisoners should not be killed, but used as a means of pressure (ransom, etc.) and fallen soldiers should be buried in a grave. While in case of defeat, the army must be invigorated by speeches and punish the enemies if they let their guard down after their victory (in case of victory, remain vigilant towards the enemy). If a truce has been reached, it must be respected, but we must remain on our guard. Finally, one should never refuse an emissary. Chapter XVII-On Surprise Attacks In this chapter, it