In Islam, war is not the prerogative of the individual but of an established government. Only an established government can declare war. In other words, individuals can pray on their own, but they cannot wage wars of their own accord. Only when a war is declared by the ruling government, can the public join in and support it, and not before that. Islam does not sanction individual actions on this issue. Therefore no Non Governmental Organization or NGO can declare a war.
As a general principle, the Quran tells us that, even where an external attack is feared, the common man should not act independently, but should take the matter to the ruler, and then under his guidance take proper counter measures. (4:83).
The Hadith also states that ‘the ruler is a shield, fighting is done under him, and security is attained through him.’
This clearly shows that the decision to do battle and its planning are the tasks of an established government. The common man can play his role as need be under government orders, and not independently.
This Islamic principle shows that there is no room for non-state warfare, which is what we generally call guerilla war. A guerilla war is fought by individual organizations, not by the State. As far as the state is concerned, if it wants to wage a defensive war against any country it has first—in obedience to the Quran—to issue a proper declaration. Only then can it wage a lawful war (8:58). In Islam, there is only ‘declared’ war. Therefore, in accordance with this principle, no proxy war in Islam can be lawful.
