In the present proliferation of blocs, alliances and pacts, the Commonwealth remains unique. Britain’s old Colonial Empire has grown into a free, loose grouping of equal sovereign states, each respecting to the full of the others’ independence. J. D. B. Miller examines the political structure of the Commonwealth and the international status of its members, and forecasts the circumstances in which it can me expected to endure.

He contends that the commonwealth is “a concert of convenience” to which each member belongs for reasons of interest rather than of sentiment. The countries of the Commonwealth find profit in the means of consultation and economic cooperation which it offers, and in the political field confine their discussions to the larger issues on which there is a measure of common interest.

The Commonwealth in the World is one of the few works which deals conveniently with these matters in a single volume. As an Australian, Miller views his subject with the necessary detachment; and his writing is as spirited as his judgments are sound.