This knowledge alone would be sufficient to deter even the boldest and most bellicose of nations.

When a sufficiently strong league of peace-loving nations is established war will, there, become a thing of the past.

During the period of transition from the old state of international anarchy to the new state of international solidarity aggressive wars will still be possible, and in these circumstances, military or other coercive action in the cause of international justice, unity and peace may be a positive duty.

'Abdu'l-Baha writes that in such case:-- A conquest can be a praiseworthy thing, and there are times when war becomes the powerful basis of peace, and ruin the very means of reconstruction.

If, for example, a high-minded sovereign marshals his troops to block the onset of the insurgent and the aggressor, or again, if he takes the field and distinguishes himself in a struggle to unify a divided state and people, if, in brief, he is waging war for a righteous purpose, then this seeming wrath is mercy itself, and this apparent tyranny the very substance of justice and this warfare the cornerstone of peace.
Today, the task befitting great rulers is to establish universal peace, for in this lies the freedom of all peoples .-- The Secret of Divine Civilization, pp.