Since the outbreak of the Second World War the Commonwealth has passed through profound and rapid changes and does not cease to change. Its nature may seem more difficult than ever to define and classify with precision, its conscious purpose as a group of states more elusive, and its role in the world more mysterious and imponderable. To some unfriendly observers its positive influence in matters that count now appears nebulous, almost to the point of non-existence. To those keenly interested and deeply devoted, it presents difficulties. It has no formal constitution, few political organs of its own except of an ad hoc and inchoate kind, and little on paper that explains aims and prescribes procedures. Polished generalities from the Balfour Report, which before 1939 passed muster in describing its ethos, may not be irrelevant, but need careful scrutiny to determine whether under contemporary circumstances they retain much meaning.
When all this is said, the fact remains that the Commonwealth continues to live as an active, global, free association. Its members at any rate recognize its existence and the Queen as its head; they are confident of being attached, not to a phantom or mirage, but to an association unique in character, which to an indefinable degree influences their formulations of policy. For them Commonwealth relations are a part of foreign or external relations, but a special part, governed by attitudes and procedures peculiar to itself. In political ideas and traditions, moreover, the Commonwealth has substance. This fact is really fundamental to everything else, for in history and logic it is prior to everything else, and determines everything else. With it this paper must begin.