The tale that is told

While the means of living are the property of a class the propertyless will be compelled to sell their labour-power.

While men have to sell their labour-power they will have to produce a surplus of wealth beyond that represented by their wages, and therefore which they cannot consume.

While this surplus wealth which the propertyless produce but cannot consume continues to be produced a market must be found for it.

While it is necessary to find a market for the surplus wealth produced by those who have to sell their labour-power, that market must necessarily be largely found abroad.

While it is necessary to find markets abroad it will be equally necessary to fight for those markets. That means war !

Therefore so long as we have a social system in which the means of living belong to a class, war is inevitable.

(Socialist Standard, April 1918)