Source: The Great Interpretation of Dreams (Ibn Sirin)
War in a dream indicates high prices, strife, or an epidemic. War between two kings indicates great strife. War between the subjects and the king indicates low prices.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
War indicates dispute and effort. Victory in it is victory in wakefulness. Fleeing from it indicates falling into strife.
Source: Signs in the Science of Expressions (Ibn Shaheen)
War is interpreted as dispute and strife. Whoever sees himself in a war is in a dispute.