He concentrates only on the fallen application of the incensive power of the sould. He does mention once, in slight passing, the intended use of the incensive power, when he says that we no longer use it "against temptation." Perhaps in the remainder of the article, which I assume will be posted later, he will discuss this. I probably also have this article on my shelves here, and I'll try to look for it as well as other references...
It helps to remember that Satan isn't creative. He doesn't invent anything new. He only distorts what God made. The difficult thing is seeing through this curent "veil of tears" to truly know what God intended for us. We often think we are being quite holy when we are just manifesting our fallenness in a different way...
Almsgiving heals the soul's incensive power; fasting withers sensual desire [appetitive power]; prayer purifies the intellect and prepares it for contemplation of created beings [intellective power.] For the Lord has given us commandments which correspond to the powers of the soul.
St. Maximos the Confessor (First Century on Love no. 79)
Just a taste of the "remedies" offered and recommended by the Church to bring healing to our souls: fasting, almsgiving, and prayer. All three are needed to bring us to wholeness...
As always, Agrarian, Kolokotronis, FormerLib, and others have expanded on the topic with great insights on the Orthodox phronema. Much obliged.
Anger always clouds our soul, even if it is "justified." That cloud obstructs God's light, and leaves us in the dark (passion), separated from Him. For that reason, anger is always sin.
Wars, whether "just" or unjust, are acts of anger and never of mercy or compassion. It is a product of our fallen nature, as Agrarian, points out, and as such it cannot be just. For we are all sinners, and fighting sin with sin is not just. Two negatives don't make a positive.
Western Christian concepts are different because of +Augustine's teaching of the "just" war as a last resort. This is characteristic of the juridical theology that prevailed in that region. Justifying violence in extremis opens a window to justifying sin as a last resort. As Agrarian points out, we are forced to defend ourselves because the fallen world forces it upon us, but we must never confuse that with righteousness or justice.
Indeed:
"The forgetting of wrongs is a sign of true repentance. But he who dwells on them and thinks that he is repenting is like a man who thinks he is running while he is really asleep." St. John Climacus, The Ladder of Divine Ascent.