If we want to study Islamic peace, we shall have to do so in the framework of the overall Islamic ideology. Islam is, in a manner of speaking, a single entity. We should not look at any Islamic concept in isolation; we must have the whole structure in view.
We may describe the whole Islamic ideology in one word: Justice. God has laid the foundation of Islam on justice. Justice has been defined as “putting a thing in its rightful place”. A judge does justice when he awards or restores a disputed item to its rightful owner.
This brings us to the concept of peace. When every thing is kept in its rightful place, when every member knows not only his rights but also his duties towards others, then peace reigns in society; and the society works smoothly like a well-balanced watch. It is what we call balance, harmony and equilibrium.